8 bore bp loads

[¡Señor.Casualidad!]

Slightly off topic. I could never understand how the pin fire hull could seal gas escape. Your pics clearly show zero detectable gas leakage. Impressive.

Oh its there. Albeit pretty minor

 

[Daryl S]

That tiny puff of gasses of interesting. I'd have thought a LOT more would show in a bore rifle.
Late friend and buddy, Leatherbelly shooting a .50 Beck longrifle with vent smaller than 1/16".
I had figured likely 1/2 that at each shot from a pin fire. Obliviously not.

 

[Kynoch2015]

Still impressive!

 

[Daryl S]

VERY!

 

[Kynoch2015]

Not sure on that @Daryl S don’t forget my 3in 15lb 12bore rifle !

No reference to case length, but reference to 9 dram loads (Double Gun Journal, Fall 2002). Have one on the other end of the spectrum at 2 drams. At 9 drams, I think I’d just step up to an 8 bore