Bullet Weight for Pacnor18" 1-8 Twist Bolt Action

[milehipo]

Just looking for suggestions for bullet weight and SUBSONIC load data for a Bolt Action Rifle with a Pacnor 18" 1-8 twist barrel, of which was built on a CZ 527 platform. I have AA #9, AA 1680, and Hodgen H110 powders.
What powder and load has brought you the best accuracy?
Thank-You

[Hoser]

210 Bergers and 220 Sierra Matchkings.

[coldbeerchief]

240 SMK's on 8.4 gr of Lil Gun produce .3 MOA groups out to 220 yards in my 1:8 barrel

[jimpa]

Have a 16" 1-6.5" Pacnor, on same action. Using 220 and 240 SMKs 4227 works good using 9.5 of 296 right now,,, experamint 1/10 gr make a big difference. seating the bullets deep to keep case volume denisty up makes big difference

[rsilvers]

Originally Posted by coldbeerchief

240 SMK's on 8.4 gr of Lil Gun produce .3 MOA groups out to 220 yards in my 1:8 barrel

You would need a 3 fps standard deviation (9 fps extreme spread) - and no one can do that with subsonic rounds.

[Titleiiredneck]

Originally Posted by rsilvers

You would need a 3 fps standard deviation (9 fps extreme spread) - and no one can do that with subsonic rounds.

I can see its possible with the right conditions, I have shot quite a few groups like this with a 1-10 twist sub 308 rounds with a 190 gr smk and 220 gr smk 300 whisper loads at around 150 yds. Probally not possible with a ar platform but I am sure it can be done with a bolt or single shot setup.

titleiiredneck

[milehipo]

With a proper load developed and using a suppressor would this be a accurate and effective hunting rifle out to 150 yards for mountain lion?

[Hoser]

Originally Posted by milehipo

With a proper load developed and using a suppressor would this be a accurate and effective hunting rifle out to 150 yards for mountain lion?

If it can trade places on the food chain with you, over gun it.