Originally Posted by Nomad
Plan on shooting sagerats and rockchucks with a 223 Rem that has a 1-12 twist.
could use some help in a bullet 40-55gr want to load just one bullet.
This is a bolt gun 22 in barrel sporter style be shooting to 400 or so yards.
Very open high desert country........
1 in 12 is a fairly slow twist for a 223 due to velocity so I would recomend the faster bullets
(35,40 and 50grs) to get the velocity up.
The 50gr should work @ around 34 to 3500 ft/sec.
And the 40gr will work just fine over 3600 ft/sec.
I had a 1 in 14 22-250 and 52 to 55gr was best @ 3800ft/sec+ .
The 223 will hum the 35 and 40grain bullets so I would try them first.
J E CUSTOM