2-300 fps change is quite a swing for 60 degree difference, especially for a temp stable power you're using.
Were these loads all made in the same batch? Could be some variables added if they were loaded at different times.
Why use mag primers?
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I shot several hundred Nosler Varmageddon 70gr thru this gun. They shot MOA out to 500. Just wanted to try something else I could get my hands on since inventory has been low lately.
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Hi All, I'm working up a load for a new bullet. I found a powder node that had SD 11, ES 21.
Ruger American 243
Sierra Gamechanger 90gr
H4350
Fed 210
Win brass (fired several times in the rifle, trimmed and annealed)
I shot the ladder at 2.26" which is mag length. I used Berger's...
This is an interesting subject and something I've wondered about as well. I have a Tikka 11 twist and am about a grain over max powder charge and under book max velocity.
Does a tighter barrel twist build higher pressure than a slower twist barrel, all else being equal?
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For sale is a gently used gen 1 vortex razor spotting scope. Glass is flawless. Two dings on the end of the sun shade as shown in the pic below.
Comes with a carrying case but is ripped up a bit. Will ship in original box. I'll throw in a window mount for my asking price.
$650 TYD PayPal f&f...