Thanks Rocky,
I figured you'd come through with something....
The load data that I saw on the net showed higher velocity figures (see below), but although not listed, I think the powder weight would be about the same for the 50 grs. with 4198.
Some of the data that I got was from your article on the 256 Win Mag. Although the cartridge is different, I correlated the powder and bullet weights on my computer to give me safe starting loads.
Depending on the barrel length that the loads were tested on, I can see the difference in the reported velocities.
Many of the these velocities listed for the Super Jet are "as good" or better than the .222, encroaching on the .223. This makes me quite skeptical. I think the Super Jet is a great round, for what it is, and I believe it's more efficient than the others for the powder used, but I'm approaching the data with skepticism.
This is the data that I retrieved so far....
22 Super Jet Reloading Data
Bullet (grs.) Powder / (grs.) MV ME Source
45SP IMR-4198 / 17 3300/ 1085 Ackley
45SP IMR-4227 / 16.5 3385/ 1140 Ackley
50 Ball C /21.0 2975/ 980 Ackley
50SP IMR-4227 / 16 3195/ 1130 Ackley
Rocky.....do they have a barrel length listed for the load you mentioned ? I have none for the data listed above, but I'm assuming it's 24-26" for those velocities.
I'll be using some H110, L'il Gun, RL7, 2400, as well as the listed 4198 & 4227.
Thanks,
Bob