Thread: HOWA .223 1 - 12 TWIST

Quick question. With my Howa 1 -12 heavy barrell can anyone advise what size largest pill to use should be..

Thanks in advance...

Some 1:12 barrels will stabilise up to 69 grain projectiles but some struggle with 63...
It will depend on the individual barrel and what type of bullets you use/what speeds you are running them at etc.

You SHOULD be fine with 63 grain pills but only testing will tell.

Originally Posted by Matt2308

Some 1:12 barrels will stabilise up to 69 grain projectiles but some struggle with 63...
It will depend on the individual barrel and what type of bullets you use/what speeds you are running them at etc.

You SHOULD be fine with 63 grain pills but only testing will tell.

Glad I asked as got a few boxes heavier than those numbers but have not tried them so better not .. Using the 55Gr training ammo suppose stick with this
as good cheap option. Any idea what is the result out of curiosity if you do use projectiles too heavy for the twist ??

If projectiles are too long/heavy for your barrel to stabilise then they won't shoot accurately is all, groups will be all over the place and bullets may even tumble through the target sideways.

Originally Posted by GravelBen

If projectiles are too long/heavy for your barrel to stabilise then they won't shoot accurately is all, groups will be all over the place and bullets may even tumble through the target sideways.

Thanks for that..