Re: **Long Action W/ .473 boltface!! What would U
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jcvibby</div><div class="ubbcode-body">I am leaning towards the 280AI since it might equal the 7WSM. I might also do the 260 to have another match rifle for pretty much anything. </div></div>
It won't. There's no replacement for displacement. The water capacity of the 280AI is about 74gr, the 7 WSM is between 82-84gr.
My 7/300WSM with a 27" barrel pushes 180 Berger Hybrids to 3085fps avg with 73.5gr of Retumbo
My 280 with a 28" barrel was topping out at 2850 with a HOT dose of H1000. I never tried RL17 for it, though I do have some. The rifle shot fantastic with H1000 so I just left it alone.
Nothing to sneeze at, but certainly not equivalent.
The 280 AI can be pushed more of an equivalent to the 7 SAUM, which has 74-75gr of water capacity.
<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">
I would like to shoot it alot though so I am trying to figure out if barrel life is a big deal to me. I really like the 6.5-06 or something super hot like that!!! JOSH, you had one of those, would you do it again? </div></div>
Yes, I would. A friend of mine just took delivery of a 6.5-06 built on a 31.75" finished length 8tw Brux.
The "soft" loads with 48.5gr of H4831sc are still getting 140 Bergers to 635yd in 8.5MOA at 1200' DA's and the recoil is minimal. It works out to a MV of right about 3000fps
My last one topped the Bergers at 3175, he's in the midst of doing load development now and already speeds over 3250 have been seen over the chrono.
Barrel life on the last 2 barrels was right about 1500rd.
I took my "shot out" barrel, trimmed 4" off the breech and 2 off the muzzle and turned it into my 6.5 Creedmoor barrel. I'm a little over 1500rd through it and it's shooting in the high 0.1's and low 0.2's pretty consistently.
The 6.5 CM and the 260 are pretty nice to shoot, a 140 Berger going 3200+ still has some recoil to it. More than most people would credit a 6.5mm to likely have.