https://65grendel.com/ Fri, 25 Sep 2026 01:47:07 +0000 MyBB https://65grendel.com/showthread.php?tid=25959 Mon, 09 Oct 2023 02:33:05 -0600 iwottopq]]> https://65grendel.com/showthread.php?tid=25959 I have a CZ 527 in 6,5 Grendel mounted with a Sightron SIII 10-50x60 with 1/8 moa clicks (not my preferred becouse have a fine cross reticle...).
After many shoots at 100 meters a would to try at 675 meters...but the software Stelok (free) tell me that I need to down the cross for more than 48 MOA or 386 clicks...!!!
I shoot a handload with a brass S & B, primer Federal Match LR, 24,7 grains of VW N135, a bullet Sierra Match of 107 grains and a speed at the muzzle of 731 m/s...
The question is...I need a +20 (or +30) MOA picatinny rail to shoot at 675 meters???
Thank to all.
Ciao
Nino]]> I have a CZ 527 in 6,5 Grendel mounted with a Sightron SIII 10-50x60 with 1/8 moa clicks (not my preferred becouse have a fine cross reticle...).
After many shoots at 100 meters a would to try at 675 meters...but the software Stelok (free) tell me that I need to down the cross for more than 48 MOA or 386 clicks...!!!
I shoot a handload with a brass S & B, primer Federal Match LR, 24,7 grains of VW N135, a bullet Sierra Match of 107 grains and a speed at the muzzle of 731 m/s...
The question is...I need a +20 (or +30) MOA picatinny rail to shoot at 675 meters???
Thank to all.
Ciao
Nino]]> https://65grendel.com/showthread.php?tid=25893 Tue, 05 Sep 2023 19:03:30 -0600 Zeneffect]]> https://65grendel.com/showthread.php?tid=25893
INSTRUCTIONS

MATCH: The match will be shot on ALL (4) silhouette distances.
Know your scope come ups before coming to the match.
This is an Individual match – Not a Team match.

TIME: November 11, 2023. Range 6
0700 drawing for lane assignments and target setup.
0745 Safety Brief
0800 Begin Match
Individual Entry Fee is $25.00 (with a maximum of 40 Shooters)

CALIBERS: From .223 to .308 bore caliber. No Magnums. Bore calibers will determine the classes. Need 3 entries of the same bore caliber to be award eligible. (Example: .223, 22-250, 222 or any .223 bore caliber makes a class.)

TARGETS: Targets will present a high degree of difficulty and offer a test of equipment and shooter skills.

COURSE OF FIRE:
Match will have 4 Stages consisting of: 10 targets at 500 meters, 10 targets at 385 meters, a combination of 10 targets at 500 and 300 meters and a combination of 10 targets at 385 and 200 meters.
No sighters or Spotters. You just come to the firing line, set up, and wait for the “load” and “commence firing” commands to be given. Next shooter in line will be the Scorekeeper. Scorekeeper will keep the score from behind the yellow line. There will be NO coaching the shooter on the firing line.
Match will be shot in 4 stages. 10 shot strings for record (one shot per designated target) All waiting to shoot will be silent during the 10 minute period of shooting.
Time limit of 10 minutes per Stage. Shooter and Scorekeeper will go down and verify hits, then reset the targets.

**NOTE: The shooter is allowed one shot only on each of ten designated targets starting at the left and ending on the right. A “knock down” equals 1 point. If the shooter misses a target, he/she must proceed to the next target in line. X = Hit - O= Miss.
TIE SCORES: In the event of a tie, the caliber class winners will be determined by hits on the smallest target at the greater distance.

AWARDS: Awards will be made to the top shooter based on highest
score. Each caliber class will need 3 or more shooters for an
award pay-out.

EQUIPTMENT:
Any type of front shooting platform is allowed. Rear support is allowed. Soft point, hollow point and poly tip bullets only. No FMJ or other types. Each shooter will be allowed 5 minutes to set up shooting equipment prior to the actual shooting time of 10 minutes.

ENTRY FEE: $25.00 Cash or check.
Make checks payable to Tom Lyon or FSC.

___ Check

___ Cash


Send Entry to:

I removed this info.

The question is, what would you run? Given the similarity to the previous match.... I think its time for the 105 matchkings to do their thing again. Why not run more umpf? Don't need to, I just need to spot my miss which is waaay easier to do. Drop means nothing, I'm dialing turrets. Wind might matter but I can get them going pretty dang fast to almost not care. If I run 6.5 grendel, this puts me shooting against 6.5 creed by the rules and I think I want to run the 22" uintah just so I don't have to chase my brass after shooting... 2830fps is fast enough.

This match was just announced a few hours ago so the wheels have begun spinning on how best to approach. I already know what optic I'm going to run (and it's not the nightforce) as it's the only one (well two actually) with 1/8 Moa click value I have (burris xtrii 8-40x50 dch f-clas 2nd focal plane, nightforce 20moa mount)]]>
INSTRUCTIONS

MATCH: The match will be shot on ALL (4) silhouette distances.
Know your scope come ups before coming to the match.
This is an Individual match – Not a Team match.

TIME: November 11, 2023. Range 6
0700 drawing for lane assignments and target setup.
0745 Safety Brief
0800 Begin Match
Individual Entry Fee is $25.00 (with a maximum of 40 Shooters)

CALIBERS: From .223 to .308 bore caliber. No Magnums. Bore calibers will determine the classes. Need 3 entries of the same bore caliber to be award eligible. (Example: .223, 22-250, 222 or any .223 bore caliber makes a class.)

TARGETS: Targets will present a high degree of difficulty and offer a test of equipment and shooter skills.

COURSE OF FIRE:
Match will have 4 Stages consisting of: 10 targets at 500 meters, 10 targets at 385 meters, a combination of 10 targets at 500 and 300 meters and a combination of 10 targets at 385 and 200 meters.
No sighters or Spotters. You just come to the firing line, set up, and wait for the “load” and “commence firing” commands to be given. Next shooter in line will be the Scorekeeper. Scorekeeper will keep the score from behind the yellow line. There will be NO coaching the shooter on the firing line.
Match will be shot in 4 stages. 10 shot strings for record (one shot per designated target) All waiting to shoot will be silent during the 10 minute period of shooting.
Time limit of 10 minutes per Stage. Shooter and Scorekeeper will go down and verify hits, then reset the targets.

**NOTE: The shooter is allowed one shot only on each of ten designated targets starting at the left and ending on the right. A “knock down” equals 1 point. If the shooter misses a target, he/she must proceed to the next target in line. X = Hit - O= Miss.
TIE SCORES: In the event of a tie, the caliber class winners will be determined by hits on the smallest target at the greater distance.

AWARDS: Awards will be made to the top shooter based on highest
score. Each caliber class will need 3 or more shooters for an
award pay-out.

EQUIPTMENT:
Any type of front shooting platform is allowed. Rear support is allowed. Soft point, hollow point and poly tip bullets only. No FMJ or other types. Each shooter will be allowed 5 minutes to set up shooting equipment prior to the actual shooting time of 10 minutes.

ENTRY FEE: $25.00 Cash or check.
Make checks payable to Tom Lyon or FSC.

___ Check

___ Cash


Send Entry to:

I removed this info.

The question is, what would you run? Given the similarity to the previous match.... I think its time for the 105 matchkings to do their thing again. Why not run more umpf? Don't need to, I just need to spot my miss which is waaay easier to do. Drop means nothing, I'm dialing turrets. Wind might matter but I can get them going pretty dang fast to almost not care. If I run 6.5 grendel, this puts me shooting against 6.5 creed by the rules and I think I want to run the 22" uintah just so I don't have to chase my brass after shooting... 2830fps is fast enough.

This match was just announced a few hours ago so the wheels have begun spinning on how best to approach. I already know what optic I'm going to run (and it's not the nightforce) as it's the only one (well two actually) with 1/8 Moa click value I have (burris xtrii 8-40x50 dch f-clas 2nd focal plane, nightforce 20moa mount)]]> https://65grendel.com/showthread.php?tid=25775 Thu, 06 Jul 2023 14:51:38 -0600 DIANEB]]> https://65grendel.com/showthread.php?tid=25775 120 ELD A2520 28.5 grains OAL 2.260...
120 Barnes Match A2520 28.5 grains OAL 2.260...

  20230706_134237.jpg (Size: 256.75 KB / Downloads: 47)

  20230706_134058.jpg (Size: 245.47 KB / Downloads: 32) ]]> 120 ELD A2520 28.5 grains OAL 2.260...
120 Barnes Match A2520 28.5 grains OAL 2.260...

  20230706_134237.jpg (Size: 256.75 KB / Downloads: 47)

  20230706_134058.jpg (Size: 245.47 KB / Downloads: 32) ]]> https://65grendel.com/showthread.php?tid=25741 Thu, 22 Jun 2023 09:26:49 -0600 DIANEB]]> https://65grendel.com/showthread.php?tid=25741 I changed scopes on 3 rifles...
I'll post results later today...]]> I changed scopes on 3 rifles...
I'll post results later today...]]> https://65grendel.com/showthread.php?tid=25691 Sun, 04 Jun 2023 09:14:20 -0600 garikfox]]> https://65grendel.com/showthread.php?tid=25691

Only thing putting me off is...magazines...There's only one made specifically for the ARC it's the ASC with red follower, there's a MDT ARC magazine too but why would anyone spend 89 bucks for a 15rd magazine wow.




]]>

Only thing putting me off is...magazines...There's only one made specifically for the ARC it's the ASC with red follower, there's a MDT ARC magazine too but why would anyone spend 89 bucks for a 15rd magazine wow.




]]> https://65grendel.com/showthread.php?tid=25685 Fri, 02 Jun 2023 10:27:27 -0600 Zeneffect]]> https://65grendel.com/showthread.php?tid=25685
I have the time and money to build a rifle before then just to run this match but I am undecided about cartridge. There are some rules about upper speed limit not exceeding 3200fps.

We looking at valkyrie at this point? Just stick with .223? 22-250 is probably a touch fast and wrong twist rate for the weight I want to run (75-80gr)

Thinking fast and flat is going to be the key]]>
I have the time and money to build a rifle before then just to run this match but I am undecided about cartridge. There are some rules about upper speed limit not exceeding 3200fps.

We looking at valkyrie at this point? Just stick with .223? 22-250 is probably a touch fast and wrong twist rate for the weight I want to run (75-80gr)

Thinking fast and flat is going to be the key]]> https://65grendel.com/showthread.php?tid=25627 Sun, 07 May 2023 18:15:30 -0600 rickt300]]> https://65grendel.com/showthread.php?tid=25627 https://65grendel.com/showthread.php?tid=25559 Sun, 09 Apr 2023 16:36:02 -0600 Cal]]> https://65grendel.com/showthread.php?tid=25559 It's been a while since I've had any time to visit the forum or post anything, life has been that busy for me.
When I was posting, I was on a adventure to build a 1 MOA rifle out of my Grr. Then life reaaaly got in the way.

Recently I was given the opportunity to readdress said adventure and I did take steps.

So, while I did change the barrel on my grr, I also added a Ultradyne Apollo S muzzle break. So I'm not sure it was just the barrel change.
So what did I change? Went from a BCA 20" Heavy Contour to a Faxon 20" Fluted Match. This change alone shaved 2 pounds off the rifle.
I did use my caliper on the flange for the barrel nut of both barrels. The Faxon barrel is about 0.015" - 0.020" thicker than the BCA.
I have to say that the muzzle break did help alot. It made the Grr feel like my 5.56.
Now I'm wondering if the muzzle break would have helped the BCA barrel.

Anyways, as part of the barrel change process I did buy a Upper Receiver mandrel and lapped the upper receiver.
Fortunately the upper receiver is and was square to the bore, just wound up removing the black oxide coating on the receiver.
Has anyone else installed a Faxon barrel? The sample I received had a slightly large journal for the gas block. I used some 2000grit wet/dry Emory paper and polished the
journal just enough to get the gas block on but it was a tight fit. About all I did was take the Nitride coating off and was very careful about running a patch down the barrel to
grab any dust that may have gone down the gas port.
I can't say enough good things about Geissele's Reaction Rod, definitely the way to go for barrel change or muzzle device change.

Next was to finally get to the range and zero the scope. First shot was about 6" high and 6" left. Inspection of muzzle break showed no contact with the round.
Second shot was just under the first shot. All told I used about 6 rounds to get the scope zeroed where I wanted. All rounds used were my reloads

I did get some velocity numbers with the Magneto Speed.

Load data:
123 SST, 30.2g CFE223, COAL 2.260

First 5 shot group: avg 2471fps, 27SD, 74ES
Second group: 2475 6 16

After that I was able to shoot the pictured group.

What is interesting, the MV's I recorded from the Faxon are about the same as the BCA + /- about 2fps.
Will these MV's increase as the barrel wears in?

One question I have, "How do these numbers stack up with the rest of the Hoard"?

Happy Easter all.

  100yd 6.5g faxon_1.jpg (Size: 215.86 KB / Downloads: 23) ]]> It's been a while since I've had any time to visit the forum or post anything, life has been that busy for me.
When I was posting, I was on a adventure to build a 1 MOA rifle out of my Grr. Then life reaaaly got in the way.

Recently I was given the opportunity to readdress said adventure and I did take steps.

So, while I did change the barrel on my grr, I also added a Ultradyne Apollo S muzzle break. So I'm not sure it was just the barrel change.
So what did I change? Went from a BCA 20" Heavy Contour to a Faxon 20" Fluted Match. This change alone shaved 2 pounds off the rifle.
I did use my caliper on the flange for the barrel nut of both barrels. The Faxon barrel is about 0.015" - 0.020" thicker than the BCA.
I have to say that the muzzle break did help alot. It made the Grr feel like my 5.56.
Now I'm wondering if the muzzle break would have helped the BCA barrel.

Anyways, as part of the barrel change process I did buy a Upper Receiver mandrel and lapped the upper receiver.
Fortunately the upper receiver is and was square to the bore, just wound up removing the black oxide coating on the receiver.
Has anyone else installed a Faxon barrel? The sample I received had a slightly large journal for the gas block. I used some 2000grit wet/dry Emory paper and polished the
journal just enough to get the gas block on but it was a tight fit. About all I did was take the Nitride coating off and was very careful about running a patch down the barrel to
grab any dust that may have gone down the gas port.
I can't say enough good things about Geissele's Reaction Rod, definitely the way to go for barrel change or muzzle device change.

Next was to finally get to the range and zero the scope. First shot was about 6" high and 6" left. Inspection of muzzle break showed no contact with the round.
Second shot was just under the first shot. All told I used about 6 rounds to get the scope zeroed where I wanted. All rounds used were my reloads

I did get some velocity numbers with the Magneto Speed.

Load data:
123 SST, 30.2g CFE223, COAL 2.260

First 5 shot group: avg 2471fps, 27SD, 74ES
Second group: 2475 6 16

After that I was able to shoot the pictured group.

What is interesting, the MV's I recorded from the Faxon are about the same as the BCA + /- about 2fps.
Will these MV's increase as the barrel wears in?

One question I have, "How do these numbers stack up with the rest of the Hoard"?

Happy Easter all.

  100yd 6.5g faxon_1.jpg (Size: 215.86 KB / Downloads: 23) ]]> https://65grendel.com/showthread.php?tid=25505 Sat, 18 Mar 2023 19:31:50 -0600 Zeneffect]]> https://65grendel.com/showthread.php?tid=25505
Unedited turkey run @ 385M / 421 yards This was a figure out the dope on the spot with the timer running as its the first I've stretched this bullet out past 300 yards.

https://youtu.be/v9fsti0BnnI

42 out of 44 total possible, I borked the 300m pigs by rushing the sight in and missed mini pig #1 + small 3" wide target on shot #4. Corrected in and cleaned up the rest. I can upload that video and the 200m chickens if anyone cares.]]>
Unedited turkey run @ 385M / 421 yards This was a figure out the dope on the spot with the timer running as its the first I've stretched this bullet out past 300 yards.

https://youtu.be/v9fsti0BnnI

42 out of 44 total possible, I borked the 300m pigs by rushing the sight in and missed mini pig #1 + small 3" wide target on shot #4. Corrected in and cleaned up the rest. I can upload that video and the 200m chickens if anyone cares.]]> https://65grendel.com/showthread.php?tid=25367 Tue, 31 Jan 2023 15:40:36 -0700 Zeneffect]]> https://65grendel.com/showthread.php?tid=25367 https://www.youtube.com/watch?v=pEc_6iHKVTE

short clip. enjoy.]]> https://www.youtube.com/watch?v=pEc_6iHKVTE

short clip. enjoy.]]> https://65grendel.com/showthread.php?tid=25345 Thu, 26 Jan 2023 14:31:30 -0700 DIANEB]]> https://65grendel.com/showthread.php?tid=25345 New Starline brass...

  20230126_132411.jpg (Size: 258.58 KB / Downloads: 132)

  20230126_132326.jpg (Size: 280.02 KB / Downloads: 72) ]]> New Starline brass...

  20230126_132411.jpg (Size: 258.58 KB / Downloads: 132)

  20230126_132326.jpg (Size: 280.02 KB / Downloads: 72) ]]> https://65grendel.com/showthread.php?tid=25330 Sun, 22 Jan 2023 08:59:19 -0700 lazyengineer]]> https://65grendel.com/showthread.php?tid=25330
Rifle is a build with a 20" Alexander Arms HBAR 1/9 twist and AA flashhider. LaRue MBT2 trigger, and basic CTR stock. Cheap bipod. Fired prone on a tarp on the ground. Weather was cool - around 45 degrees or so. Winds were light to non.

Targets were digital. FWIW, this won the match (it wasn't a big match).

By the way, for what it's worth, Midrange matches are a nice way to stretch the Grendel Legs and see what it can do. Nominally 600 yards, typically. Look around for matches in your area that do Service RIfle High Power and or MidRange. Show up with your Grendel at Match time and 100 rounds, and they'll be happy you came out.

Todays was four 20-round strings of fire, with 2 rounds of sighters for each string.




Note that over a course of 20 rounds fired, wind change is a factor, and will sight adjustments tend to be done as you go.

107SMK (my favorite Grendel bullet for this). Impact velocity at 500 yards is: 1775 */- 8. That's moving along pretty good, with a great SD.

Shoots a clean 200-14x. Very light sight adjustment over this string, ranging from +3.9 to +4.0MIL elevation above my 200 yard zero, and Wind only went from L0.2 to L0.3 MIL. Very light wind with almost no change the string.


123gr SST (my general purpose and hunting load). 1595+-7 FPS impact velocity.

Shoots decent 196-5, which actually disappointed me a bit, in comparison to the 107. I got dogged by the elevation, and if you closely, Sighers S1, S2, and then shot #1, took me a bit to get sighted in. I had to work the elevation a bit more, moving it around from 4.0 to 4.4 MIL on the gun, and windage moved some: from L0.0 to L0.2. Looking at it now, If I ran just 0.1MIL higher for the bulk of the string, it probably could have been a clean - I was impacting mostly below the X.

85gr Sierra Varminter in Fireforming PPU 7.62x39 brass. Yea, for the heck of it, I decided to run a mild fireforming at 500 yards. How did it run? Actually - not bad!
1259+-/ 15 FPS. That's actually not too bad an SD, as things go. But velocity is definitely on the slow side, wind is more of factor, with this low Ballistic Coefficient bullet, and slow velocity.

197-6x. It actually outshot my 123 SST ammo, even at 500 yards. And yep, it was wind that bleed my points. Conditions over this string of fire caused elevation and windage adjustments to range from 4.4-4.5Mil ele and R0 to R0.2.


Fourth string - I didn't capture the screen, apparently - GAH! I swore I did too. Well, here's the data book.
(see next post)
Did good at a 199-8x. Not quite as good as the 107 SMK. The 9 is a corner-shot, with typically indicates user error of some sort. 1619 +/- 7.5 FPS.


Just some general data on how a Grendel runs in competition at 500 yards. It won the match for the day, FWIW - but it was quite lightly attended (Cold and damn day in Texas).]]>
Rifle is a build with a 20" Alexander Arms HBAR 1/9 twist and AA flashhider. LaRue MBT2 trigger, and basic CTR stock. Cheap bipod. Fired prone on a tarp on the ground. Weather was cool - around 45 degrees or so. Winds were light to non.

Targets were digital. FWIW, this won the match (it wasn't a big match).

By the way, for what it's worth, Midrange matches are a nice way to stretch the Grendel Legs and see what it can do. Nominally 600 yards, typically. Look around for matches in your area that do Service RIfle High Power and or MidRange. Show up with your Grendel at Match time and 100 rounds, and they'll be happy you came out.

Todays was four 20-round strings of fire, with 2 rounds of sighters for each string.




Note that over a course of 20 rounds fired, wind change is a factor, and will sight adjustments tend to be done as you go.

107SMK (my favorite Grendel bullet for this). Impact velocity at 500 yards is: 1775 */- 8. That's moving along pretty good, with a great SD.

Shoots a clean 200-14x. Very light sight adjustment over this string, ranging from +3.9 to +4.0MIL elevation above my 200 yard zero, and Wind only went from L0.2 to L0.3 MIL. Very light wind with almost no change the string.


123gr SST (my general purpose and hunting load). 1595+-7 FPS impact velocity.

Shoots decent 196-5, which actually disappointed me a bit, in comparison to the 107. I got dogged by the elevation, and if you closely, Sighers S1, S2, and then shot #1, took me a bit to get sighted in. I had to work the elevation a bit more, moving it around from 4.0 to 4.4 MIL on the gun, and windage moved some: from L0.0 to L0.2. Looking at it now, If I ran just 0.1MIL higher for the bulk of the string, it probably could have been a clean - I was impacting mostly below the X.

85gr Sierra Varminter in Fireforming PPU 7.62x39 brass. Yea, for the heck of it, I decided to run a mild fireforming at 500 yards. How did it run? Actually - not bad!
1259+-/ 15 FPS. That's actually not too bad an SD, as things go. But velocity is definitely on the slow side, wind is more of factor, with this low Ballistic Coefficient bullet, and slow velocity.

197-6x. It actually outshot my 123 SST ammo, even at 500 yards. And yep, it was wind that bleed my points. Conditions over this string of fire caused elevation and windage adjustments to range from 4.4-4.5Mil ele and R0 to R0.2.


Fourth string - I didn't capture the screen, apparently - GAH! I swore I did too. Well, here's the data book.
(see next post)
Did good at a 199-8x. Not quite as good as the 107 SMK. The 9 is a corner-shot, with typically indicates user error of some sort. 1619 +/- 7.5 FPS.


Just some general data on how a Grendel runs in competition at 500 yards. It won the match for the day, FWIW - but it was quite lightly attended (Cold and damn day in Texas).]]> https://65grendel.com/showthread.php?tid=24999 Tue, 04 Oct 2022 08:43:25 -0600 Redraider]]> https://65grendel.com/showthread.php?tid=24999
I am in need of a little input from anyone that has tried the front post that is a circle with a fine crosshair. I think it would help me center the front post better, and let me be more accurate on target. Any first hand information would be helpful as to overall sight picture and results.

I am coming up empty on other forums!

This goes on a Compass Lake 22lr upper, if that makes any difference.

Thanks in advance

Redraider]]>
I am in need of a little input from anyone that has tried the front post that is a circle with a fine crosshair. I think it would help me center the front post better, and let me be more accurate on target. Any first hand information would be helpful as to overall sight picture and results.

I am coming up empty on other forums!

This goes on a Compass Lake 22lr upper, if that makes any difference.

Thanks in advance

Redraider]]> https://65grendel.com/showthread.php?tid=24789 Fri, 05 Aug 2022 19:29:21 -0600 CJW]]> https://65grendel.com/showthread.php?tid=24789
Found a vacant bench that was just right……then I went in search for a chair.

The only chairs available looked like they were stolen from a homeless shelter in Atlanta,
Eventually found a wooden stool that was about 4 inched too short…..

Here is the deal now, I am going to start taking my own chair to the club…..

Drummers chair????? Shop chair?….

What does the Vile Horde suggest????

I’m 5’10 , 215 lbs……..I need a stable chair.]]>
Found a vacant bench that was just right……then I went in search for a chair.

The only chairs available looked like they were stolen from a homeless shelter in Atlanta,
Eventually found a wooden stool that was about 4 inched too short…..

Here is the deal now, I am going to start taking my own chair to the club…..

Drummers chair????? Shop chair?….

What does the Vile Horde suggest????

I’m 5’10 , 215 lbs……..I need a stable chair.]]> https://65grendel.com/showthread.php?tid=24778 Tue, 02 Aug 2022 14:28:28 -0600 Dt219]]> https://65grendel.com/showthread.php?tid=24778