What powders for short-barrelled Boomers?

[Naphtali]

I now have two short-barrelled revolvers, a 4.75-inch SRH 480 Ruger and Freedom Arms 475 Linebaugh with 4.75-inch barrel.

1. Shooting 325-grain Speer Gold Dots, what is the best powder to use in the SRH 480 to obtain 1050 fps ± 50 muzzle velocity with least muzzle blast and pressure?

2. Shooting 340-grain LBT WFN GS, with or without the gas check, what is the best powder to use in the SRH 480 to obtain 1050 fps ± 50 muzzle velocity with least muzzle blast and pressure?

3. Shooting 340-grain LBT WFN GS, with or without gas check, what is the best powder to use in the Model 83 475 to obtain 1300 fps ± 50 muzzle velocity with least muzzle blast and pressure?

4. Shooting 400-grain Speer Gold Dots, what is the best powder to use in the Model 83 475 to obtain 1250 fps ± 50 muzzle velocity with least muzzle blast and pressure?

[dubber123]

Well, with the 400 grain, (or more), boolits in the .475 Linebaugh, H-110 is my favorite powder. The Gold Dots were a "slow" bullet for me in my 4-3/4" .475 incidentally. 1,250 fps is still easy to do.

[Naphtali]

Well, with the 400 grain, (or more), boolits in the .475 Linebaugh, H-110 is my favorite powder. The Gold Dots were a "slow" bullet for me in my 4-3/4" .475 incidentally. 1,250 fps is still easy to do.So, basically, there is no faster burning powder I should use? H110, L'il Gun, and the like are what I use in 6-7.5-inch barrels.

[sd5782]

I have neither of those guns, but I really like AA9 for just those shooting characteristics you mentioned. It goes bang, with half the drama as H110. Perhaps you give up a few fps, but it is way more pleasant to shoot in my SRH 44 mag.

[Naphtali]

I have neither of those guns, but I really like AA9 for just those shooting characteristics you mentioned. It goes bang, with half the drama as H110. Perhaps you give up a few fps, but it is way more pleasant to shoot in my SRH 44 mag. None of the loads is particularly close to high end. The 475 400 grainer is probably more than I can shoot for more that a cylinderful. My 475 comfort level expires just above 325 grains @ 1400 fps in a six-inch barrel.

[dubber123]

So, basically, there is no faster burning powder I should use? H110, L'il Gun, and the like are what I use in 6-7.5-inch barrels.

With a different boolit, something less than H-110 would likely meet your needs. That Gold Dot 400 was a slow boolit for me, and maxed out at just over 1,300 fps.

I haven't fooled with too many jacketed bullets, and find the easier to drive cast better suited to the use of faster powders. I like Herco powder, and would bet it would be a good choice for most of your loads.

Power Pistol meters well, and would meet most of your velocity needs too, my brother and I use it alot for our less than max loads.