twist rate for .308?

[Bart B.]

The often heard claim that a 1:12 twist in a .308 Win. barrel will not shoot heavy bullets accurate is well countered with facts in the link below:

http://riflemansjournal.blogspot.com/2012/02/cartridges-762-nato-long-range-match_04.html

Note the M1 and M14 arsenal match barrels used at the time had 1:12 twists. Lapua 185-gr. FMJRB bullets were used in USN and USAF M1's rebarreled with 1:12 twist 7.62 NATO chambered ones and shot sub MOA at 1000 like the 190 Sierra's did. I've shot hundreds (thousands?) of each in Garands and can well attest to the accuracy they produce.

My bottom line is, a 1:12 twist will shoot 155's through 190's the most accurate. But unless you've got at least 29 inches of barrel, the 155's won't leave fast enough with safe pressures to remain supersonic through 1000 yards.

 

[kahrguy]

bigamehunter93 To help you cut down on the confussion of the rights and wrongs read this artical . http://www.6mmbr.com/308win.html

I bought a new 788 remmington back in 1978 , maybe. 1-10 twist and I have shoot to 600 yards enought to understand why this low cost rifle was the rifle to beet for light weight factory firearms. I found Lapua 155gr scenar is one of the few that will stay super sonic if you shoot to a 1000 yards also out of shorter barrels. The 308 is streaching it at that distance with out 28 to 32" barrels. Hornadys SST loads make very good hunting ammo too.

 

[FrosSsT]

MatchKings for hunting?
308 for 1000 yard hunting?
Negative.

+1 The .308 sierra matchking (nor any other .308 bullet) is the tool for a 1000 yard hunting job

 

[kahrguy]

308 with any bullet and 1000 yard hunding is very foolish. Target shooting is somewhat practical but not long range hunting. Missing yardage by only 50 yards at that distance is a clean miss or very baddly place bullet and that makes for a foolish hunter.
http://www.ultimatesniper.com/Docs/32.PDF

 

[Art Eatman]

kahrguy, I think he left out the word "not". Typos happen...

 

[308King]

308 can easily be pushed past 1000 yards. I have shot plenty of target at 1760 yards. Barrel length is just as important as twist rate. I primarily shoot a 24inch barrel 1:11 twist. I'm able to shoot the 208 ELD Match at 2683fps average using reloader 17. The high BC 0.690 coupled with the weight allows me to have less drop and more energy at longer distances. In fact in they stay over 1100fps at 1760 yards.

 

[Art Eatman]

The thread is five years old. The rifle might well be finished, by now.

It's okay, though. Necrothreadia is not at all unknown. Probably happened a thousand times before now.