Breechplug
Win W209's are also a tad bit longer than the T7's
Agreed think I got .305 for the W's and .301 for the T7's
With some of the longer primers would this cause the primer to be pushed in too tight to the BP and block?
I think the companies have made allowances for the different length primers in tier designs...
With some of the longer primers would this cause the primer to be pushed in too tight to the BP and block? I know it's o.k. to be a tad bit loose with the shorter primer but what effect does the longer primer and tighter fit cause if any?
It would be my belief that you can compress the primer some and not cause an adverse effect, but if you compress it to much you might cause the primer to become pregnant upon shooting making removal from the primer cup more difficult. Think that is one reason the T7 primers are less in diameter than the normal W209.
but can the longer primers be crushed when the breech is closed damaging the primer?
I do think you could 'crush' or overcompress a primer...
Interesting experiment for you with the type of BP you have in an Accura. Turn the breech plug out a few threads. To the point that the gun will not close - then back in just enough to get the gun closed. Insert a primer and see if the gun will close. If it does pop the primer - what does the area look like? Keep moving the BP in and testing to see if at some point there is a difference in material you see in the firing pin area.
Busta has installed 'O' rings under the primer to take up the space and get some primer compression.