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Anybody have 9mm throating or chamber reamers?
20nickels:
I have a tight throated or chambered "National Match", whatever that means, 9mm EFK pistol barrel. I'd like to ream it to a more standard spec for combat pistol matches. Anybody have one or know of a gunsmith that has one? Tks. ahead. Clinton.
RLMoeller:
Are you having issues with the barrel as it is?
20nickels:
--- Quote from: RLMoeller on June 27, 2014, 06:52:29 PM ---Are you having issues with the barrel as it is?
--- End quote ---
Hello,
Yes, It will not chamber (plunk test) a perfectly handcrafted Lyman truncated cone @ 1.016 oal @ .357". I need to squish it down past SAAMI specs (.999) to get it to go flush at the breach. The pistol will not go into battery every 10 rds or so @ 1.016. This is the bullet I want to use in all my 9mms. EFK stated somewhere that their barrels are .002" tighter but I can't find it now. Whatever theoretical accuracy I may be gaining from this is not worth it.
RLMoeller:
You are using .357 diameter bullets rather than .355? Sounds like it is engaging the rifling, based on your comment on OAL.
20nickels:
--- Quote from: RLMoeller on June 27, 2014, 07:50:50 PM ---You are using .357 diameter bullets rather than .355? Sounds like it is engaging the rifling, based on your comment on OAL.
--- End quote ---
Engaging the throat. Cast boolits do best one or two thous over bore. Truncated cone bullets are known offenders to tight chambers. What I don't get is the Glock barrel just swallows it and both barrels are .358 @ the throat when I slug them. Must be the taper of the throat? Discussions like this are driving me.
http://forums.1911forum.com/showthread.php?t=438861
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