Joe, before I will ask you some question reg. this small piece of cardboard I have to tell you, that in Europe according to CIP 67.5 MM cases is OK for 65 MM chambers. Most Europian cartriges for 65 MM chamber guns loaded in 67.5 MM cases.
Now re. this Parker Bros cardbord. What what I can see,
Length of Shell 2 5/8"
Use Shell 2 3/4"...
I didn't see the length of chamber here.
At the same time cardboard says 'Brass Shells should never be used with nitro powder.'
You'll never insert longer brass shell in short chamber and it means your Parker has 2 3/4" chambers.
So what's your point?
Larry, you said any light load in 2 3/4" shells is OK for 2 1/2" chambers. Now you say every vintage gun has to be inspected. Nice try.
Back to the first question I could give only one suggestion, to send this gun to proof house and to ask those people to proof this gun with proof loads in 2 3/4 shells.
All the rest will up to you, Patriot, and for your own risk. No one official will never tell you your gun with 2 1/2" chambers is OK for 2 3/4" cartriges, light or hot it doesn't matter in this case.
