It's a long story but about a year ago I picked up a four cavity 170 gr. .311" RD clone Arsenal mold I had planned on using it in my Sav. 170 30-30 but to my disappointment the ogive was to large and it wouldn't chamber so it and both the plain base an gas check bullets which the mold will cast two of each sat on the shelf for a while. So the other day I'm sitting out in the shop and I got to thinking maybe I should give it a try in the old Sav. 99 since it seems to have a large throat and it would make a great hunting bullet with its nice meplat, so I put together a dummy round and chambered it and it fit like a breeze.
I put together five rds. each of the plain base and gas check bullets behind 16.0 grs. of 2400 in my reformed 7.62 NATO brass that I converted to 300 Sav. and went over to my buddies house and put a target up at 50 yds. and just shot them with no sight adjustment to see what they would do. I didn't even bother setting up the chrony since I had a pretty good idea of the velocity range I was in and if all went well I would be revisiting this load as well as some further testing with other loads at higher velocity with different powders. The bullets were cast from 50/50 Lead Wheel Weights with a bit of tin, powder coated and quenched out of the toaster oven after curing.