IMR SR 7625 Question

[462]

The local gun store has two, one-pound cans of SR 7625 for $10 each. I've no experience with the powder, powder charts show it in the Unique range (which I use a lot) and Lyman's Cast Bullet Handbooks lists some data. The price is very attractive, but I don't want to buy it unless it can be put to good use.

So, is it a practical cast bullet power for the following cartridges, or should I just pass?
.38 Special
.357 Magnum
.44 Special
.45 ACP
6.5 Swede
7 mm Mauser
.30-'06
7.65 Argentine
.45-70 at Trapdoor loadings

Thanks,
Michael

 

[RicinYakima]

It is a wonderful powder for 38 Special and 44 Special! Only great with .45ACP, though. If you can find a copy of Ken Water's Pet Loads, he used it a lot for target loads in the 12K - 14K pressure range. I bought all I could find when they quit selling it. It has the same vol/grain as Bullseye, but slower. The only thing you have to watch is that as pressure goes up, it starts burning faster and faster. It is not a good choice for 357 or rifle cartridges.

 

[462]

Thanks, Ric!

I was hoping it would be a good powder for use with the .38 Special Uberti 1866.

I have the two-volume Pet Loads and will peruse the .38 Special and .45 ACP chapters.

 

[462]

Bought a pound for the .38 Special Uberti 1866 and Lee 158-grain RNFN testing. Also have Sierra 125 and 158-grainers to try. As it is, Unique has proven to be the most accurate, for the three bullets, but I'm hoping that 7625 will improve upon it.

If all goes well, I'll probably buy the remaining pound.

Shout-outs to RicinYakima and Dusty Bannister for their helpful suggestions.