Cooper 51 in 204 R, 1/12 twist~any load data out there?

[.22LRGUY]

OK, I know the 51s are yet to arrive (I have one ordered ) but with the rate of twist being the same as the single-shot 21s, I'm wondering if anyone has load data they'd care to share? Planning on starting with Varget, 32 and 40gr. V-Max and going from there. Thanks for taking a moment to reply!

 

[Fassteel]

My pet load is with 40gr ballistic tips and 27gr of varget in my HS, for my CZ it was the 39gr blitz with 28gr of varget. FS

 

[dead meat]

My Tikka and my sons Rem sps don't like Hornady 40 gr vmax bullets. Best groups with Sierra bullets, i have some Barnes and Noslers to try but it has been a trying year to do much shooting. Varget and 8208 haven't proved any better than H322 that i have a good supply of and continue to use. An 8 lb jug of H322 lasts a long time when loading little cartridges.

 

[.22LRGUY]

Thanks guys, greatly appreciated.