+- 6.5 Grendel Forum (https://65grendel.com)
+-- Forum: 6.5 GRENDEL DISCUSSION FORUMS (https://65grendel.com/forumdisplay.php?fid=3)
+--- Forum: 6.5 Grendel ARs and Other Semi-Autos (https://65grendel.com/forumdisplay.php?fid=8)
+--- Thread: Ideal Rifle Buffer/Spring for Grendel (/showthread.php?tid=13557)
Pages:
1
2
Ideal Rifle Buffer/Spring for Grendel - Chrazy-Chris - 06-20-2017
Anyone experiment with extra heavy buffers or springs for rifle length tubes on their Grendels? I'm shooting a 20" rifle length gas with fixed rifle stock with standard rifle buffer/spring and I was actually a bit surprised at the recoil. I'd like to avoid a brake to keep the weight and noise down but would like to be able to see my impacts at range.
Anyone have success with extra heavy buffers/springs with a rifle-stocked Grendel?
Does the JP SCS cut down on recoil over the rifle length spring/buffer or is it just to make it feel/sound smoother?
Ideal Rifle Buffer/Spring for Grendel - StoneHendge - 06-20-2017
I am running the JP SCS H2 version with my JP 22er and recoil is absurdly low. Also have JP LM carrier and compensator and its in a PRS (heavy) which obviously also help with recoil too.
Have you found a heavy rifle buffer anywhere? I want to try something heavier on my 22 Nosler to slow my bolt down but can't find anything other than the standard 5.4 oz rifle buffer for my ARFX. Seems that the only option would be doing a spacer and heavy carbine buffer/spring...
Ideal Rifle Buffer/Spring for Grendel - Lastrites - 06-20-2017
Stonehendge, you should be able to replace some of the steel weights with tunsgen if you want to play around with more mass. KAK Industries had them listed on their website.
Ideal Rifle Buffer/Spring for Grendel - jurassic - 06-20-2017
[quote=Lastrites]Stonehendge, you should be able to replace some of the steel weights with tunsgen if you want to play around with more mass. KAK Industries had them listed on their website.[/QUOTE
I've done this several times, easy to do with a roll pin punch of the proper size.
Ideal Rifle Buffer/Spring for Grendel - Cockednlocked - 06-21-2017
I use a standard spring and H buffer on my 20" rifle gas Grendel. I also use a muzzle brake. Recoil is very light with my relatively hot loads.
Ideal Rifle Buffer/Spring for Grendel - sk8inrj1 - 06-21-2017
I use a standard rifle buffer, JP enhanced rifle buffer spring (I believe 7% stiffer) and a precision armament M4-72 brake. Recoil is ridiculously light. I have no problems spotting my own shots from 100 to 1020 yards. I'd swear it has less recoil that my 16" carbine 5.56, granted the carbine is 2 pounds lighter. Also, I don't get any twang from the JP spring through my magpul fixed rifle stock.
Ideal Rifle Buffer/Spring for Grendel - StoneHendge - 06-21-2017
Lastrites Wrote:Stonehendge, you should be able to replace some of the steel weights with tunsgen if you want to play around with more mass. KAK Industries had them listed on their website.
Thanks!
Ideal Rifle Buffer/Spring for Grendel - shooter545 - 06-21-2017
I have had good luck with the Vltor A5 system on one of 6.5 Grendel's.
Ideal Rifle Buffer/Spring for Grendel - Chrazy-Chris - 06-22-2017
jurassic Wrote:[quote=Lastrites]Stonehendge, you should be able to replace some of the steel weights with tunsgen if you want to play around with more mass. KAK Industries had them listed on their website.[/QUOTE
I've done this several times, easy to do with a roll pin punch of the proper size.
That's a great recommendation, I'm definitely thinking of going this route along with a heavy spring. The only extra heavy rifle buffer I could find was $115 which is just ridiculous. You rock!
Ideal Rifle Buffer/Spring for Grendel - Blazin - 06-26-2017
More mass and heavier buffer springs actually cause more recoil; this has been known by USPSA competitors for a long time, and also Vuurwapen has a great YouTube vid showing this with an AR and various springs and buffers.
https://www.youtube.com/watch?v=tkXRtTqs_4A
I recently tried a Tubb flat wire spring and so far I'm loving it.
Ideal Rifle Buffer/Spring for Grendel - LRRPF52 - 06-26-2017
More mass with more spring rate returning to battery causes increased reciprocating mass impact effects on your position and sight picture.
I've never felt a 20" RLGS with rifle RET and rifle buffer to recoil hard. Sometimes butt plate hardness translates to more painful felt recoil on a gun that should be pleasant to shoot.
I personally like the JP SCS a lot, but they need to be tuned for your GSL, load range, and gas port.
Ideal Rifle Buffer/Spring for Grendel - Chrazy-Chris - 06-26-2017
Blazin Wrote:More mass and heavier buffer springs actually cause more recoil; this has been known by USPSA competitors for a long time, and also Vuurwapen has a great YouTube vid showing this with an AR and various springs and buffers.
https://www.youtube.com/watch?v=tkXRtTqs_4A
I recently tried a Tubb flat wire spring and so far I'm loving it.
I think you're talking about a rifle with the luxury of an adjustable gas block. For a rifle with an adjustable block tuned to run with a heavy buffer vs light buffer, the heavy buffer one is going to have more perceived recoil. If the amount of gas is a constant and the buffer is getting slammed into the rear of the buffer tube, a heavier buffer should absorb more of that shock. This is just the way it all works in my head. I ordered the weights and will be trying it out soon. I can tell you that my M4gery's recoil (carbine gas on 16" barrel - notoriously overgassed) was night and day when I went from standard to a T3 carbine buffer, with the muzzle having much less jump using the T3. Similar results but not as noticeable with my 7.62x39 upper.
Ideal Rifle Buffer/Spring for Grendel - Lastrites - 06-26-2017
Interesting, of course when initially setting up my 16" odin with tune-able gas block I had a H buffer in the lower and it didn't dawn on me to swap it out pre-tuning. Now I wonder if there is an benefit to back and re-tune with with a regular weighted buffer.
Ideal Rifle Buffer/Spring for Grendel - Chrazy-Chris - 06-28-2017
I swapped out 3 of the 5 steel weights in my rifle buffer with tungsten ones from KAK. Much to my surprise, the roll pin was missing completely from my buffer; I suspect it was never there in the first place. Fortunately the bumper fits tight enough that I'm not worried about running it without one until my next midway order. I hope to have a range report with the heavier buffer sometime but it'll probably be a few weeks. I'm so sick of the East Coast...
Ideal Rifle Buffer/Spring for Grendel - LRRPF52 - 06-28-2017
Buffer weights are a function of barrel weight on military guns to counteract carrier bounce. The heavier the barrel, the heavier the buffer needs to be for automatic fire, otherwise you have a hammer falling on an unlocked bolt, and you get FTFire malfunctions. That's why Colt made different buffers for the original M4A1/M4s vs the SOCOM barrel profile M4A1.
Rate reduction is something of a secondary approach with them.
Ideal Rifle Buffer/Spring for Grendel - StoneHendge - 06-29-2017
Chrazy-Chris Wrote:I swapped out 3 of the 5 steel weights in my rifle buffer with tungsten ones from KAK. Much to my surprise, the roll pin was missing completely from my buffer; I suspect it was never there in the first place. Fortunately the bumper fits tight enough that I'm not worried about running it without one until my next midway order. I hope to have a range report with the heavier buffer sometime but it'll probably be a few weeks. I'm so sick of the East Coast...
I wish I had seen your post before I headed to the range yesterday! I had to put my buffer in a vise to tap out the roll pin and to get it back in. I put 2 of the 3 weights I ordered in but I probably would have brought all 3 had I thought that it could be run without the roll pin. Definitely helped slowing down my bolt but its still occasionally starting to rotate before the brass settles so the third weight will go in for the next trip. My gas block had been set one notch above where it would reliable cycle. I went through 50 rounds and the first 20 cycled fine and then I probably had 1 short stroke on the 3rd mag and 2 each on the 4th and 5th. Recoil was noticeably different. Not necessarily less, but different. Went from being like a sharp 223 carbine to a more lower pitched thud. I guess you could say it was more pleasant. Muzzle movement isn't an issue with the 22 Nosler with a VG6 Gamma and 2.5-10x Vortex
Ideal Rifle Buffer/Spring for Grendel - diddlyv - 06-30-2017
Not knowing any better I am using a stock carbine buffer and spring on my 20 inch rifle length gas system Odin works barrel rifle. I am also using an adjustable gas block from Odin Works.
Ideal Rifle Buffer/Spring for Grendel - Lastrites - 06-30-2017
diddlyv Wrote:Not knowing any better I am using a stock carbine buffer and spring on my 20 inch rifle length gas system Odin works barrel rifle. I am also using an adjustable gas block from Odin Works.
I doubt your any worse off with the std carbine buffer, as I had asked prior with no response if there is any benefit to having a H buffer compared to the carbine. Likely you are using a smidgen less gas when cycling which is likely a good thing but may really not be all that much difference from having a slightly heavier (1/2oz) buffer installed.
Ideal Rifle Buffer/Spring for Grendel - Chrazy-Chris - 06-30-2017
I agree that if you have an adjustable GB, messing with the buffer weights isn't really needed. StoneHendge did a good job of describing the difference in the "feel" of the recoil impulse. You can feel that there's more reciprocating mass with the heavier buffer, but IMO it cuts down on the initial "bang" of the recoil if that makes any sense. Kind of like the difference in shooting a sharp fast but low recoiling gun versus a heavier slower recoiling gun. This is all just based on my experience changing buffers in a carbine .223, have yet to test out the Grendel.
Ideal Rifle Buffer/Spring for Grendel - ah1whiskey - 06-30-2017
Chrazy-Chris Wrote:[quote=jurassic]
That's a great recommendation, I'm definitely thinking of going this route along with a heavy spring. The only extra heavy rifle buffer I could find was $115 which is just ridiculous. You rock!
this is the ticket!
a stock rifle buffer "should" work well enough . but a little tune up with these weights turned my rifle super slick-- a nice low buck option.