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.

[PigHunter]

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.

Thanks for posting. That's helpful

[PigHunter]

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.

That's what I've read too

[PigHunter]

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.

That's good advice and exactly what I was thinking

[PigHunter]

Treestand, what was your resolution to the problem. I also have a 1:9 twist on my AR .223 barrel.

[PigHunter]

Treestand, what was your resolution to the problem. I also have a 1:9 twist on my AR .223 barrel.

1-in-9 Inches
This is the beginning of the road for the shooter wanting to take advantage of the heavy bullet trend. The 1-in-9 is a great compromise twist rate—not too fast to cause problems with the 55-grain Bullets, but fast enough to stabilize all but the heaviest bullets under most circumstances. This twist will stabilize most traditional bullets up to 75-grains, and monolithics up to 70-grains—but they do so right at the edge of the envelope so not all rifles will do it. My personal 16-inch Rock River Arms carbine with a 1-in-9 twist does fine with ASYM’s Tactical Match Grade 77-grain OTM load, but has shown signs of instability with handloads using the 70-grain Barnes TSX—unless the bullet is pushed to maximum velocity. With longer barrels and the commensurate faster velocities, this twist can be more forgiving.

Read more: http://www.gunsandammo.com/ammo/pair-barrel-twist-rates-ammo/#ixzz5C06WH6UH