eljefe Wrote:Thanks VG
I like the "on board with the hoard" 
Maybe we 'down under wallahs' should start a sticky here on bolt Grendels, seeing that its going to be the only option?
Hi Tony,
Mate its heartening to read the part about you wanting to build one for your self too.Augurs well for me 
Cheers All
A bolt rifle section would be good, as there are some of us, in this world, who aren't allowed to own semi auto rifles.
I'll be building mine on a near new Stevens 200 that came in minus it's bolt. Seems that old mate had break in and the thieves stole his ammo and bolts, but not the rifles. I've ordered another bolt, in .223 head size and will open it up for the Grendel round.
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Have postewd my bolt rifle intention here http://www.65grendel.com/forum/showthrea...andloaders
so as not to hijack this thread.
Von Gruff.
@ Tony-Now that'll be interesting, to see a non Stevens barrel go on...Are you planing an A&B too?
@ Von G, am sure a lot of us 'AR deprived' folk will benefit from loading data, neck bushing sizes etc.
Does /would the 6.5 Grendel fit into the Sambar legal category,I wonder?
Cheers All
eljefe Wrote:@ Tony-Now that'll be interesting, to see a non Stevens barrel go on...Are you planing an A&B too?
@ Von G, am sure a lot of us 'AR deprived' folk will benefit from loading data, neck bushing sizes etc.
Does /would the 6.5 Grendel fit into the Sambar legal category,I wonder?
Cheers All
1. I'll probably get a Walther bbl for it. Maybe a TSE. Don't know yet.
2.Wouldn't fit here in Aus. .270+ cal restriction. That's why I sold my 6.5x55 and built 7x57, in case I get the chance one day to go south and hunt Sambar.
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eljefe Wrote:Does /would the 6.5 Grendel fit into the Sambar legal category,I wonder?
Cheers All
No caliber restrictions here in NZ for hunting cartridge use but if I were after larger Sambar - wapiti sized animals I would use my 7x57 as Tony has also indicated, unless I had a fit of the "lets see what happes" and take the 404 Jeffery as I did once on a goat bomb up.
Von Gruff.
Grendel bolters becoming more popular! I won't feel so alone at home anymore.
Hi gents, its a good source of Grendel info here. I'll get back to you about that reamer later on tonight.
I went out yesterday with the shortened PacNor and the more I shoot it, the better it seems to perform. Can you tell which shot I pulled? Need to buy some more BM1 when I head up for the SHOT show in Sydney.
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adamjp Wrote:Grendel bolters becoming more popular! I won't feel so alone at home anymore.
Hi gents, its a good source of Grendel info here. I'll get back to you about that reamer later on tonight.
I went out yesterday with the shortened PacNor and the more I shoot it, the better it seems to perform. Can you tell which shot I pulled? Need to buy some more BM1 when I head up for the SHOT show in Sydney.
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Nothing wrong with that group Adam. Short barrels, combined with short cartridges, work well, eh.
Sambar- Asking because of all the 6.5 & 'Elk interest' 
Von G-Yup, would be a nice way to blood my 404.Got some interesting 350 gr GC CB to check out...
Ready when you are, Tony!
Adam, tha'ts a splendid effort.
... looks like I want my Grendel right now. So BM1 is in?Am still looking for Lil Gun ( for the 'Juice')
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AFRO408 Wrote:1. I'll probably get a Walther bbl for it. Maybe a TSE. Don't know yet.
Tony, What do you think of the TSE barrels. I have a couple and while they are very good shooters I do find the fouling to be a little more than I would have expected.
Von Gruff.
I need to get some more BM1 and work it up a little more. I think there is another half to full grain in it before pressure is an issue. Should get those Scenars out at nearly 3000fps - 2950 may be good.
I did do some workups with the 100gn NBTs over BM1 and manged to get them going at just over 3000fps (3043 IIRC) but I felt the brass was getting smashed a little hard. SD and ES numbers were single digit though.
One thing I have learnt is that what works in an AR15 Grendel is not always the best thing in a bolt Grendel. Still exploring this so I'm not confirmed on it yet.
Adam, there's the other bloke on AHN, who 's running a bolt Grendel, he used a quote Grendel reamer from PTG unquote, any idea whether its a bolt or AR reamer? He's running 2207.
Cheers
Yes, Andrew has put one set of loads down the tube on his m85 based Rifle. He is still waiting for his gunsmith to finish the rest of the rifle so he can work it some more.
His load of 2207 behind the 120gn Sierra ProHunters will only be delivering around 2400fps. Lots of room for development. FWIW he is using an A&B barrel.
No idea on his reamer specs, it was a new order from PTG when the first one got smashed in a tight spot of the A&B barrel.
Von Gruff Wrote:Tony, What do you think of the TSE barrels. I have a couple and while they are very good shooters I do find the fouling to be a little more than I would have expected.
Von Gruff.
I have been fitting TSE barrels since the late 90's and haven't had one come back as being faulty. Sure some of them foul up a bit, but if they look rough to me, then I run a lapp through them and they are fine then. If you know how to hand lapp, then do that, otherwise I would suggest that you shoot a couple of hard cast bullets, rolled in fine lapping paste, through them. That should fix the problem. Or give the bores a rub with Butches Bore shine. I'm told that that works as well.
The worst fouling barrel, I have fitted, was a Douglas CrMo .243, requested by the customer. Cost him $150 more and the throat was totally fouled up in two weeks. He was a pro 'roo shooter and didn't know how to clean a barrel either. He was really disappointed. I wonder why??
I was just speaking with the guys from Lapua at a Wilderness Expo here in Finland, and one of them has a Sako 85 chambered in Grendel, with a varmint profile barrel. I did a major double-take when he said he's getting 940 m/s (3084fps) with the 123gr Scenar using N550. I made sure I understood him correctly as I took out the calculator function in my phone. They said it was a 600mm barrel, which is 23.6" long.
I asked if he was using a longer COAL, and he said he's uing the Lapua load manual recommended COAL.
LRRPF52 Wrote:I was just speaking with the guys from Lapua at a Wilderness Expo here in Finland, and one of them has a Sako 85 chambered in Grendel, with a varmint profile barrel. I did a major double-take when he said he's getting 940 m/s (3084fps) with the 123gr Scenar using N550. I made sure I understood him correctly as I took out the calculator function in my phone. They said it was a 600mm barrel, which is 23.6" long.
I asked if he was using a longer COAL, and he said he's uing the Lapua load manual recommended COAL. Wow!!!! I'd like to see the pressure trace from a pierzo on that! That is a max load in my 6.5x47 Lapua - with 38.x gn of AR2208 (Varget).
I thought I was pushing it with a 108gn Scenar at that speed.
If you could ask him very nicely for some boltgun loads I would certainly appreciate it.
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adamjp Wrote:Wow!!!! I'd like to see the pressure trace from a pierzo on that! That is a max load in my 6.5x47 Lapua - with 38.x gn of AR2208 (Varget).
I thought I was pushing it with a 108gn Scenar at that speed.
If you could ask him very nicely for some boltgun loads I would certainly appreciate it.
Plus one for me too please.
Buck2732
"You will know you are in a nuclear attack by the bright flash, loud explosion, widespread destruction, intense heat, strong winds and the rising of a mushroom cloud".
"I have no idea what weapons will be used in the next world war... but I do know that world war 4 will be fought with sticks and stones". A Einstein.
PER ARDUA
I keep thinking back on the conversation I had with him, and the only thing that makes sense for me is if he was talking about .260 Rem, but I was certain we were talking about the Grendel, as he said he has 2 Grendels, and at least one was a bolt gun, and he's getting 940 m/s with the 8 gram Scenar out of it.
Someone remind me please, "How much pressure does the the CZ 527 tolerate?" and "How much pressure does the Grendel generate?"
You may well be onto something there.
He may also have been talking about the 6.5x47 Lapua - a great case that equals the 260 Rem with bullets in that weight range. It is also capable of withstanding extreme pressure better than most. The 6.5x47 Lap has a H2O capacity of 48gn, the 260 54gn (but it loses more with seating the bullets deeper). IIRC the Grendel is fully 10gn under the 6.5x47 Lap case.
3080fps is quite doable out of a 24in barrel with the 6.5x47 Lap case and a 123gn Scenar. Stiff, but doable.
I just can't see those velocities with the Grendel case. Not if you want to extract it anyway. The CZ action, or the Mini Zastava are good, but their qualities are immaterial as the brass will liquify at pressures needed to drive a 123gn Scenar at 3080fps from a little Grendel case.
hm2 clark Wrote:Someone remind me please, "How much pressure does the the CZ 527 tolerate?" and "How much pressure does the Grendel generate?" adamjp has indicated that "The CZ action, or the Mini Zastava are good, but their qualities are immaterial as the brass will liquify at pressures needed to drive a 123gn Scenar at 3080fps from a little Grendel case."
So to complete the answer to your question, the targeted pressures for standard AR bolts are around 50,000 psi. This pressure level is set to assure very long and highly reliable bolt life. We have also been just told that the Grendel case, on the other hand, is designed for 58,000 psi.
The extra 8,000 psi or 16% pressure, has a significant impact on attainable muzzle velocity.
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