Kentuckywindage
Well-Known Member
Going with the same chamber 6.5 creedmoor in the Stealth and 308 Winchester in the small shank FCP m10.
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Improving the 308 Win performance
- Thread starter nralifer
- Start date
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Kentuckywindage
Well-Known Member
I should add for clarity the Stealth in 6.5 creedmoor at this time is the large shank and I want to stay with the 6.5 creed in that rifle.
It all comes down to me having enough gun to make the long shot WITH assurance that I can make a clean and ethical kill. If I am not completly sure of that, I won't take the shot. Lots of folks have made the statement about having enough gun for the job. I couldn't agree more. To me, shooting elk at 600+ yds pushes the envelope. Yes it can be done.
But I will need to think hard if I want to. Probably pass on it and work my way closer to the target.
hicountry1
Well-Known Member
3200, out of a 20" 308, with a 150 is asking for serious trouble.
Your pressure is more than likely north of 80k.
Good luck with that
Your pressure is more than likely north of 80k.
Good luck with that
nralifer
Well-Known Member
No problem there.
Kentuckywindage
Well-Known Member
So in choosing an aftermarket barrel, what brand do you run?
I'm late on this but have done some research because my son loves military cartridges.
I understand that it was needed to handle the pressure and meet military specs. The civilian version uses brass if I understand correctly and is more along the lines of 2700. Which is still pretty hot from a 16" barrel.
My question for the 277 fury would be.
1. How long is the barrel gonna last as that's obviously a hot chambering in a repeating rifle?
2. How long will the rest of the gun hold up under that pressure?
3. Why? 80,000 PSI seems like asking for trouble! Cases obviously will be more complex to make and expensive. Which we, the tax payer will end up paying for. We need a little more horsepower than 5.56 but this seems akin to going around one's elbow to get to one's
Oh! Back on track. 308 load
40.6 AR comp. LC 85 or LC 67 match brass or
42 grains AR Comp in Win. Brass or
41.7 grains AR Comp in RP brass
168 Amax
Fed 210m primer
2630-2660fps in my 20" barreled DPMS G2
Kills deer real dead, Hogs too.
Use at your own risk
I have a load that'll push 3000fps with a 150 from a 26" bolt gun but it's temp sensitive and I'd rather shoot stick powder H4895, imr 4064, Varget In the bolt gun and stay around 2900.
nralifer
Well-Known Member
Bartlein or Benchmark have worked really well. Lilja also is excellent. Lead times are long though.
Crazy talk! Just buy a 300 WSM or win mag or PRC. No reason to go crazy or lead others to believe it's safe to try to do something that wasn't intended. Just buy or build the right cartridge for the purpose.
Me? I would go with Bartlein. What ever you pick while your waiting pick up a 308 Win Large Shank Savage Take Off for the Stealth. What I did. Also found a 6.5 PRC Take Off for it too.
I am going to order a 6.8 Western Bartlein and a Origin.
I agree. The Origin is small shank, I understand you can have the large for more meat, but cut with small threads. Not sure if that is correct with Origin.
We have several 308s and willing to try the 150 BD2s in the old Winchesters etc. In the 1:10 20 inch barrels will the 175 work? I am presuming they likeley won't work in the 22 inch 1:11.25, correct?
nralifer
Well-Known Member
Guys shooting a 3006 definitely can benefit by stuffing the 150gr BD2 .308 cal bullet in their 3006 case. The bullet in question is a reloading component and since it has the highest BC in it's weight category, 3006 guys will benefit from that. The pupose of this thread is to find ways of improving the 308Win performance by using better components. Certainly using higher BC reliably expanding bullets in other .308 caliber cartridges should improve their performance at distance.
Yeah, but you said in your first post you said this. So my point was give them both the same facelift instead of declaring it will outpace a bigger cartridge. Otherwise, I get your point.
nralifer
Well-Known Member
The 175 gr BD2 will work fine in a 20" barrel with a 1:10 twist, but will not be adequately stabilized in a 1:11.25 twist. Being heavier the MV will be slower of course. You can mitigate that some by using a small rifle primer case, a small rifle MAGNUM primer and Leverevolution (LVR) powder. It's burn rate is a bit slower than CFE223 so you could start out at recommended charges of CFE 223 for 175-180 gr bullets and increase the LVR charge by 1 grain until you either reach the speed you want or start noticing pressure signs. Large rifle brass are fine but I at the higher pressure end the primer pockets tend to enlarge. I use the Lapua Palma brass which has a small rifle primer. In testing for this thread I have reused the same batch of brass 5-6 times now with no primer pocket issues so far. Tried to post a picture of the fired case but it did not download
sea2summit
Well-Known Member
Looks like I don't have any pictures of it on deer. If memory serves I've only done two does with the 308 vmax, not sure how many does with .223 vmax. I've taken a few yotes less than 100 yards, hogs out to about 200 yards, and the deer we also close ish. I originally loaded them for hog eradication competitions counting on them to do well even with running hits and this has proven very true. Meat damage on the does was similar to 6.5C eld-m as I recall.
