Ruger American ranch 16”

[Stinky Coyote]

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12/6/2020 range report for Grendel ranch rifle
Bottom left 123 sst factory avg velocity 2380 s-d 16.4
Top left 123 eldm 27grains xbr avg velocity 2302 S-d 19.4
Top right 123 eldm 28.5 grains xbr avg velocity 2409 s-d 14.1 shows pressure signs cratered and flattened primers also marred brass but no heavy bolt lift I’ll back her down a bit and get back to you.
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i've chronied my american ranch grendel a couple different times with factory hornady black and average 2386 fps...within 6 fps of your factory sst number...i wonder what reloading could do to improve on these numbers, can't these bolt guns run up to 62,000 psi over these factory 52,000 psi numbers? i would expect another 50-100 fps depending on barrel length no? i don't reload so have no actual experience

as it is i have no need for more hp than the factory ammo anyway so i'll never need to reload so all is well in my world