Re: 7mm WSM versus .243 Winchester
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bacarrat</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BobinNC</div><div class="ubbcode-body">A 7mm WSM w/ Berger 180 gr @ 2800 vs a 243 w/Berger 115 gr @ 2950.
The 243 will be flatter shooting to 1K yds by 0.1 or 0.2 Mils, but the 7mm WSM will hold the wind about 0.3 Mils tighter.
That's using JBM numbers.
Barrel life with either is excitingly on the short side in case it matters.
Bob </div></div>
I don't know anyone with a 7WSM that shoots the 180s that slow. Most people that I know of are shooting them between 2900 and 3K FPS where it seems the accuracy node is at.
I say, a 162gr AMAX being pushed around 3200FPS would be one of the hardest combos to beat. I was pushing a little faster then those numbers when I was able to get the AMAXs to shoot out of my rifle. </div></div>
Bacarrat,
I am well aware that most folks shoot'em faster. But 2800 fps is about all the 180's will do, in a 24" SA Rem 700 restricted to factory mag length.
Take a longer barrel say 26" to 28", and set the bullets out to 3.1" and yes, 3K is very doable.
Same thing with the 243. Use a longer barrel, and seat the bullets out a bit, and your pushing 3050 FPS.
I was just being conservative, and comparing stock to stock, without magazine and barrel improvements.
Thanks,
Bob