I tried it and didn't get near the velocity I could get with anything else. The case was pretty much full up into the neck. MR2000 from alliant is much better.
Superformance worked great in my 22-250's though. I think it has a really limited use,as there is not much recommended load data.
Here is the link to the thread I posted some data in on 22/250 and .308.
http://savageshooters.com/SavageForu...c,39100.0.html
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