264WM
Well-Known Member
3500 Is good I am getting 3827fps with my 264wm
I didn't get many, "Repeatable" good groups, in my 6 XC, 1-7.5 twist, 24" Criterion Barrel,..87gr v max at 4K I feel like a 10-11 twist would be ideal.
This guy has sone experience with them.
6mm Remington Ackley Varminter
6mmBR.com is the best guide for 6mm BR Benchrest precision shooting, complete with 6BR FAQ, Reloading Data, Shooter Message Boards, Reader Polls, and Photo Gallery. Match event calendar and rifle competition accuracy training tips. Equipment reviews (.243 bullets, 30BR cartridge, 6mm Norma...www.6mmbr.com
No no!!!!! Repeat it! I need to know how fast it's going!V max and burgers may not give desired results as their base may cave in due to rotational torque during obturation. If you see issues, immediately try the 90 and 95g Nosler Ballistic tips, as their thick "solid base" resists the deformation due to rotational torque.
Hemiford, use a ballistic program and see what twist works with a 1.5 stabilization factor, and choose twist accordingly. Also, you may want a 1* leade angle vs 1.5* leade angle. Since you are talking V max, Make the throat dia .2440-.2445 as some lot numbers are running a .2435 dia on the shank, you do not want jacket material being scraped off in the throat which would spike pressure.
I know a guy here that is shooting the 55g,70g, Nosler ballistic tips on deer out of a 6 Gibbs at incredible speeds that I will not repeat, very slow twisted, 30" barrel.
I have a 6 Ackley and use 87 gr Hornaday bthp at 3302 fps. It will do a number on coyotes out to 600 yards (farthest for me)Will this bullet withstand 4000 ft/s MV ?
I'm going to build a 6mm SAUM, with a long barrel, so I expect very high MV,
will this bullet survive the launch ?
I was also looking at the Berger 6mm 87-gr VLD Hunter, same question for that one.
I'm considering a 10 twist barrel, not 9 or 8 for this build.