hypersonic
Well-Known Member
- Joined
- Dec 12, 2005
- Messages
- 169
I love me some superformance too in a few cartridges. Some say its a progressive burn rate I have no idea. but where it does work its great and in others I have tried it in it behaves like H-4831 you can just jam more in there before compressing the sheet out of it.Don't blatantly disregard Superformance if you already have some on hand. I found great loads for my '06 from the 168 TTSX to 190 ABLR using Superformance. When I tested the 130 TTSX, Superformance was showing itself to be too slow, at least in my rifle. But I definitely see more velocity before pressure signs appear using Superformance than I have with RL-19, RL-22, and RL-23.
According to my notes, 61.2gr Superformance yielded me an average velocity of 2866 from a 22" factory Savage barrel. That's a 190gr bullet.
------Two things I must stress------
This was MY experience in MY rifle.
Secondly, I have a lot more testing to do before I settle on a load for the 190's.
Edited to add: that charge weight above is definitely close to max in my rifle. It HAS to be close to showing pressure...lol. So use care in selecting your starting charge weight.
Really good and over looked powder.