Ihave a problem, I have a Ruger, Bolt Action, Carbine, in 223 caliber. It has a 16 1/2 inch barrel, I can not use any bullet wei

[Treestand]

Ihave a problem, I have a Ruger, Bolt Action, Carbine, in 223 caliber. It has a 16 1/2 inch barrel, I can not use any bullet weight higher than a 62 grain, Anything above that will key hole at 25 yards. I can only shoot a 60 grain bullet at 100 yard, that will produce a small clover leaf, which can be covered with a dime.I can not find any spec's, on twist per inch. I believe this is the problem. Can you help?

[Johnnie]

Your Ruger has a 1:9 right hand twist.
You can find specs at Ruger's web site > at Ruger's site click on 'Firearms Search' (in red bar, left hand side, you can't miss it) > click on 'Caliber Search' > enter your type/action then caliber/gauge then click on 'search' > click on 'Spec sheet' next to Compact Rifle - there you will find specs for Ruger Compact Rifle.

[alabamaoutlaw]

A 1 in 9 twist barrel is at it's best shooting 42 thru 57 grain bullets
a 1 in 8 twist is better for the 55 thru 68 grain bullets according to Ruger.
Good luck at get it stabilizied.

[the captain]

Treestand, I am trying to figure out why you are trying to load heavier bullets than a 62 grain into a .223. A 55 grain bullet will kill varmints like a champ.
The .223 is a good flat-shooting rife, however if you are looking to throw a heavier bullet you need to look into larger calibers.
With all of that said, feed your rifle ammo it likes and shoots well. If you want to shoot bigger bullets, use a larger caliber.