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polyphemus · June 13, 2013, 11:13 AM

"As for the amount of tension 16 to 20 ounces is plenty on a 45acp"
Respected gunsmith and author Jerry Kuhnhausen recommends 31/2 to 41/2 lb
rim pressure for standard ball ammo and 31/2 to 4 lb for wadcutter style.
Today's replacement extractors require no farther modification other than
pressure adjustment and the "clocking" issue if present is the direct result of
an out of specs firing pin stop,a small amount of rotational tolerance should
not cause any problems.
The 27oz figure I suggested is not a magic number,it's how I have resolved
fte and ftf issues that I have run into.I have no gunsmithing tools and if I
haven't needed any by now it is unlikely that I'll need them in the future.

June 13, 2013, 11:13 AM	#11
polyphemus Senior Member Join Date: June 24, 2012 Posts: 1,055	M1911 extractors "As for the amount of tension 16 to 20 ounces is plenty on a 45acp" Respected gunsmith and author Jerry Kuhnhausen recommends 31/2 to 41/2 lb rim pressure for standard ball ammo and 31/2 to 4 lb for wadcutter style. Today's replacement extractors require no farther modification other than pressure adjustment and the "clocking" issue if present is the direct result of an out of specs firing pin stop,a small amount of rotational tolerance should not cause any problems. The 27oz figure I suggested is not a magic number,it's how I have resolved fte and ftf issues that I have run into.I have no gunsmithing tools and if I haven't needed any by now it is unlikely that I'll need them in the future.