I'm trying to hold onto my 3031, 322 and 4198 for some hunting loads, jacketed Hornadys, (not the FTXs although I've got a bunch of FTXs but not a bunch of the new dimension brass).
I've got a bunch of hard cast Rushmore 300s RNFP (RHSS1063) (.459) with the Hi-Tek coating done really purdy ... I wanna use them for dinging metal on the range and competing against my Son with his 444.
I'm sitting on 28 pounds of 4895 ... I need to start using it up. I've switched to Vihtavouri powders for all of 30 cal rifle stuff (with the exception of my service rifle practice loads M1a) ... so I am hoping to use a bunch of this on ab0ut 500 rounds of 45-70 using these Rushmores. (Because between these Rushmores I've got, plus a bunch of others a buddy of mine cast, plus a bunch of Starline Brass ... I'm bored and wanna load a bunch of 45-70 and shoot it up for fun.)
I need a good recipe that will not blow my face off using IMR 4895 (and/or RG 4895) and those 300 grain Rushmores ... if anyone has a good one it would be much appreciated. Thanks in advance.
PS: Or good advice. I've double and triple and quadrupled checked every source, and I have tons of old and new manuals, apps, I've been reloading for decades but here's my delima.
I'm not sure how to load for this hi-tek coating. It's really well done. It's downright purdy, gold even, but I've never loaded with these stuff before. These things are right at .459 coated. Now I've been told I can treat these like jacketed. True?
If so Sierra says I can start at 57 grains of IMR 4895 up to 61 grains.
Lee's Modern and Lyman says start much lower ... 43, 44 range. 37 for the trapdoor but mine is a fairly modern JM Stamped 1895G Ported ... 99 modelish or somewhere around there.
I've rolled-up 15 rounds, five of each 51 grains, 52 grains, 53 grains of the RG 4895 ... then I got to thinking. I know I'm good here, these are fine ... but not knowing these boolits I figured I'd better head over to the cast boolits experts guys and ask them ... they'll know.
These are ready to go ... anyone ever used 4895 before?