Good afternoon all,

I'm sure this has been posted somewhere before but I suck at Google and the search function is not my friend... I'm reloading for a 338 Lapua Savage 110fcp HS and I picked up some 250 grn Sierra Matchkings in an attempt to get a little more accuracy out of it at 1000 plus yards. I'm looking for a load where I can use Retumbo powder and CCI 250 mag primers. There’s tons of stuff out there on 300grn Matchkings but nothing on the 250’s... any help is greatly appreciated!

Thanks in advance
Respectfully
Mike