Finally got to rock the new 2014 AT today compliments of
@TheBigCountry
Manzella 28” 260 Rem
142 SMK
H4350 at 42.5 grains
Lapua Brass
CCI 200 primer
Moving about 2830 fps. I’ll get more serious numbers when I load develop on the fired brass later
Just some 100 yard groups to sight in then fire form brass in the future
For those curious there’s Zero primer cratering with this setup with a large firing pin bolt at this charge. I actually did the initial load development with this barrel on my 2022 ATX and a small firing pin bolt
For today I just through the barrel on this AT and shot the same ammo with this guns factory lfp bolt
First shot way high right to get zeroed. The next 5 went into a .4” group you could cover with a dime. Then 4 shot group with the remaining rounds in the mag. I pulled the one right of the orange after moving positions bit. Stacked the remaining 3 inside 1/4”
The other bolt is currently at black canyon being converted to magnum head. Got the 7 round mag today and 300 WSM Lapua brass on the way. Excited for this rifles journey
I will say I hate shooting at 100. My eyes are always screwing with me. Load development will be at 300 yards as I usually do in the future
Rocking the 338 Ultra SR
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