Back to the .480 Ruger experiments matching up the double rifle to the Ruger Super Blackhawk

[Scott Tschirhart]

Trying to get a load that shoots around 950 FPS with a 380-400 grain cast bullet in the revolver but which will regulate reasonably in the double rifle.

Shot in the freezing rain this morning but 14.5 gr of HS 6 is getting pretty close.

Using a Bear Creek 380 grain RNFP I’m clocking right at 1100 FPS.

Double rifle clocks right at 1290 fps and stacks the bullets up at 25 yards.

[JBowen]

That load should stop just about anything! Sounds like a winner.

JBowen

[GunnyMack]

Great ! I bet a little more tinkering and your have it dialed in.

[Scott Tschirhart]

It’s a little more recoil than I want in the revolver. But it’s not too punishing. It was too chilly and windy to do more than just cursory testing. But I do think that HS6 may get me there. Pressure seems mild.

The velocity figures between the right and left barrel are remarkably similar.

[High Desert Hunter]

Scott have you tried those bullets over Longshot? I need to chronograph the load, but Longshot and the 385gr HP from the MP mould is proving to be quite accurate and not as peppy as my HS6 loads.

Dave

[Scott Tschirhart]

I have some Longshot Dave. Please send me a recipe when you get a chance.

[High Desert Hunter]

Scott, I use 10.0 Grains. Sent you a message to that effect as well so it doesn't get buried.

Dave

[Scott Tschirhart]

Thanks Dave. I’ll try it.

It looks like tomorrow will be a good day to work in my reloading room.

[Scott Tschirhart]

10 gr of Longshot got me the velocity I wanted in the revolver.

But in the rifle the right barrel shot to the left and the left barrel shot to the right at 25 yards.

[Scott Tschirhart]

I may just increase the powder charge and see if they converge.

[weiler]

Very cool Scott, I’m sure there’s a post about it, but what are the deet’s on that double? That one you had built?

[Scott Tschirhart]

I didnt have it built and there may be others here that know the details.