22PPC load help with 55-65gr Bullets

[Hotrod6.5]

Guys I have a 28” heavy Lothar Walther 1:10” twist barrel on a Nesika J action and would like to try some longer range Bullets in the 55-65 gr range. I have shot very small groups with 52-53 gr bullets at 3400 to 3500fps but can’t find much load info info for heavier bullets. I would like to know which powders might work and approximate max velocities to work up to. I shoot with a Lab Radar chronograph and watch SDs along with speed and pressure warning signs etc. I know this is not a typical twist for a 22PPC but I’m sure someone has experience with this. Thanks guys

 

[nockhunter]

Try H322, or other powders you use in the PPC, and Sierra 55g Blitz king, it's pretty long for a 55g bullet.

Mike

 

[Evlshnngns]

Sierra claims you should stabilize a 69smk, I would try it.