IMR SR4756 .45Colt? .45ACP? .38Spl?

don Tomás · Post by **don Tomás** » Sat Mar 08, 2014 4:59 pm

I'm an old Alliant Unique guy and have also been using IMR TrailBoss, neither of which I can find at the moment.

My son-in-law found IMR SR4756 somewhere and passed along a pound of it to me. (Thought I read somewhere IMR was going to discontinue this and other powders?) Anyway, anyone load .45Colt, .45ACP or .38Spl with the 4756? Anything special to be aware of? 8gns Unique pushing 250gn LRNFP is my usual .45 Colt go-to load for the Rossi lever action and New Model Ruger Vaquero.

Thanks in advance,

jdad · Post by **jdad** » Sat Mar 08, 2014 5:41 pm

I think it was 4759 that was dropped.

Griff · Post by **Griff** » Sat Mar 08, 2014 7:44 pm

Hodgdon's website has it listed under 45 Colt loads, not Ruger-type.

Cast Bullet Hunter · Post by **Cast Bullet Hunter** » Sun Mar 09, 2014 7:59 pm

SR-4756 is great for standard revolver loads. Look at the can again though, you will find it is 8 oz, not a pound. 4756 is quite bulky. Leaves very little residue too.

4756, 4759 and PB are all on the list to be discontinued.

getitdone1 · Post by **getitdone1** » Wed Mar 12, 2014 7:14 am

I have used IMR SR4756 powder and like it for it's clean burning, leaving little residue in gun.

I recall, quite some time ago, this powder was discussed here and the negative aspect of it was--I believe--it has a sudden pressure spike and therefore you can get into serious pressure trouble easier than with other powders.

Someone correct me if this is wrong or expand on this.

Don

IMR SR4756 .45Colt? .45ACP? .38Spl?

IMR SR4756 .45Colt? .45ACP? .38Spl?

Re: IMR SR4756 .45Colt? .45ACP? .38Spl?

Re: IMR SR4756 .45Colt? .45ACP? .38Spl?

Re: IMR SR4756 .45Colt? .45ACP? .38Spl?

Re: IMR SR4756 .45Colt? .45ACP? .38Spl?