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Sierra 177 smk?

That seems to be pretty smoking for that grain weight...Chad heckler smoked everyone using factory Lapua 175 scenars in worlds, id be surprised if they were loaded any faster than 2650fps.
I agree. When I do my tests I going to start my velocity at around 2550 then stop at pressure signs/2760ish whichever comes first. Will likely start with H4895 powder and go from there.
 
Small Rifle Primer is your friend in this endeavor. You picked a badass powder!
Haha thanks, I heard h4895 is one of the best for 308 win. I have a box of new lapua palma SRP brass ready to go! Still waiting on a 24” criterion barrel from NSS that should arrive within the next few weeks hopefully. I also want to get some good ol’ IMR 4064 but it seems overpriced/hard to find at the moment.

 
Xbr 8208 is awesome if you can find it as well. I’ve got some N140 I’ll be playing with.
Powder Valley has it
 

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I've used IMR 4064 for decades in various 308's with long (24'-27") bbl's, and have 15 lbs of it sitting around. It's always preformed well with the old 168, 175 SMK's using either 4064, RL-15. Currently my SBR 18.5" really works well w/the 169 SMK, and H4895. My long barreled 27" is still loving the 185 Juggernaut behind VarGet.
 
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