Originally Posted by
ronlaughlin
Not exactly. I am saying this is indeed how the 'crush' happens, but i don't necessarily feel it.
The caliper tell's me what the 'crush' is. For example, the table you posted the other day had the STS primer being 0.294" long. When i close my Accura with it's current breech plug, i cannot really feel any 'crush'. However, when i open the breech, and then remove the unfired STS, it will measure 0.291". This is the 'crush' that makes for zero blow by, a shiny clean spent primer, and clean scope bottoms. Myself, i cannot feel this 'crush' when i put the Accura into battery, however, i can feel it when i put my Omega into battery.
I beleive this to be the best method - pushing the nose of the primer against the shelf... I asked for my clarification
[/quote]What was happening to the CVA guy, is, he was 'smushing' the W209 primer. They were sticking, and leaking, because they were deformed by being 'smushed'. In that instance, they were forced tight to the side wall of the primer pocket, not just the shelf. [/quote]
I can picture that as we had the same problem when we set the shelf for a Fed 209a... when we then used a W209 we crushed it to the point of deforming it and squeezing it against the prime pocket wall + I think it dod leak.
Of course this is only conjecture on my part; i wasn't consulted nor was i there, but it is the only logical explanation i can come to. When i received the plug, and measured it, and examined the primer pocket, my inspection verified what i already was certain of; the primer pocket was not too deep.
Thanks for the information and clarification....
mike