Development of PP loads for the .44-77.

[Distant Thunder]

I cast 55 of these 441505EPP and they mostly weigh 508 grains with a few at 507 and 506.

   

I patched a couple and the .950" patch is just about right. The diameters could be a midge bigger but are not bad. I had no trouble dry wrapping these 2-D bullets, but I have been wrapping this type for years.

I set one on top of 85 grains of 1 1/2 Swiss, lot #18/01/2016 and it was not quite enough powder so I settled on 86 grains and that's good. The bullet is approximately .125" in the case mouth but I did not measure it. I'll do that tomorrow. I just need to have the angle of the base band up against the rifling and that I have.

I put a very light taper crimp on the case mouth. I actually had to lightly flare the case mouth to seat the bullet and the taper crimp really just closes it up so it will chamber.

   

I'll load some up the same with a .060 ploy wad and Federal 210 primers in the JBA cases and see how they shoot.