Originally Posted By: JDW
Steve, absolutley not. Use only 2 1/2" shells and low pressure because that is what that gun was made for when proofed. Others will say it is ok, but the 2 3/4" shell won't open fully causing a lot of extra pressure.
I would stay to around 8,000 psi.


It is not that simple and Sherman Bells articles in DGJ have shown that it MAY be ok. The ' a lot extra pressure' has not been documented in Bells articles in which a pressure gun was used.

Also the fact that many historic makers often 'short chambered' their guns.

You will also find that many 2 1/2" shells are actually 67.5mm long and standard 2 1/2" chamber is actually 65mm long.

I am not trying to be contrary but the answer is not as simple as JDW has made it seem.


Last edited by Utah Shotgunner; 04/05/07 10:35 PM.
Mike