Clark I have a box of .457 balls, I will have to try that one.



13 grains of Herco works pretty fair in the Contender and 13.6 shoots great out of the Remington Rolling Block. Just a guess but I am assuming 1000 fps or so out of the RB.



Aladin et al . . .

I will have to try some of the lighter 2400 loads, it does great in lower level loadings in my 1917 Enfield CB gun!



LouisB

TClewis,





There will be three sounds:

1) click of firing pin

2) report at muzzle

3) bullet striking target



Increase the load .1 gr at a time until the three sounds are replaced with one loud BLAM. Back off .1 gr and that's the load for your barrel length.





The amount of powder varies with the length of the barrel [how much the gas can expand].

The velocity varies with how compressed the charge is [how high the peak pressure is].



My 45/70 is a short barreled Handi Rifle.

If you have a Trapdoor, you may use up to 1 gr.



I am college educated in the field theory and transmission line models of accoustics, but it is the gunsmith Randy Ketchum, who never went to college, who figured out out for me that this threshold was the pressure required for super sonic gas escapement when the bullet clears the muzzle.

I have since had guys more educated than me calculate that threshold pressure at about 2 atmospheres.

I think JBelk says that suppressors have to have a 30 to 1 expansion ratio.



I chamfer the inside of the mouth of the case until it is cookie cutter sharp, and put a piece of wood in the press as a cutting board. I place the poly propalene over the case mount and push down on the press handle. The wad is then cut and placed over the powder. I repeat that. The bullet is then seated deep to drive the wads down onto the powder.



If the bullet is left at the case mouth, the bullet will bounce off wood instead of penetrating 1". The sound is the same with different seating depths, but the peak pressure and velocity change radically.

26-28g of Blue Dot seems to work well.~~~~~~~~~~~~~~~~scott