Well yes I know what ¼" looks like, I have in fact measured such amounts in terms of the tenth of thousandth of an inch, Thats a decimal point followed by .000X. I have also roll crimped some shells. You leave ¼" above the top wad, insert it in the crimp head & rotate while giving it down pressure to turn the end over till it meets the top wad. This leaves a double wall protruding above the top wad where had been a single one.
This means that ¼" has now been turned into about 1/8" plus a little allowance for the thickness of the paper. Now "If" the case was indeed a full 2 3/4" it has a loaded length of about 2 5/8". If you then put it into a true 2½" chamber it will indeed intrude by 1/8" into the cone. That's about 2nd-3rd grade arithmetic.
Everything I have read of either Thomas or Bell, both were working strictly with fold/pie crimped shells which use approximately ½" for the crimp. A 2 3/4" pie crimped shell has a loaded length very similar to a 2½" roll crimped case. This leaves ample room beyond the end of the case for unrestricted initial opening of the crimp, at a very critical stage in the development of it pressure rise. This is not necessarily, & most likely not, true of a roll crimp case. Not a single person has cited a reference from either Thomas or Bell, where this issue was addressed. It is indeed true that all three arrived at the same conclusion regarding loading a 2½" load into a 2 3/4" case closed with a pie crimp. This was never under discussion "By Me". It is also equally true that both Thomas & Bell cited Burrard "ONLY" in his statements which applied to a case loaded with a different load & closed with a different closure (Out of Context) & failed to even mention his reporting of the conditions they were dealing with.
It has however become painfully clear I have made a Grave & Serious Misjudgement. I had been under the impression I was addressing reasonably Inteligent people who could understand what they read, Obviously this thought was seriously Flawed.
So as far as this thread is concerned TaTa, Adieu, Au Revoir, Adious, Hasta La Vista, Auf Wiedersehn.
