Pete, I don't believe you could hurt a Trojan either either but you know how some people gasp at the mention of a heavy load. Your 1 3/8 oz loads likely exceeded recommended service limits, unless you didn't have any speed behind it, and your gun is still good for another 100 years I suspect.
Bell's reports showed minimal pressure rise in 1/4" short chambers in the order of 10%, anyway, thats what I recall.
If you look at fired lengths of shells in the period, they extended longer than nominal chamber length in all reported gauges. There was contemporary industry wide discussion of the extra hull length extending into the forcing cone and sealing better against gas loss than shells without the extra length. Muderlak discussed that issue at length. More recently, Austin Hogan had some tables on the length issue somewhere. I can't cite all the references off the top of my head, but I think we have also had PP articles about it, several I think. It might be a good research article to pull all the sources together again in a coherent manner, because this question comes up all the time to the new people. Up for it?
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