good stuff-- rl33New Reloader 33
Military has bought a big shipment for the 338 lapuagun)
OK, as a guess you must be in the 140-150 grain range with that load.I'm using retumbo in a high performance .416 muzzleloader. Pushing a 375g cutting edge copper @ 2805 fps at 25f and 2745 fps at 70f. The hotter the slower. Colder faster. I'm getting great accuracy just don't like the velocity change with temp.