trp Posted March 16, 2015 Share Posted March 16, 2015 Guys I just bought a Schumann barrel from a member here it's says its a .400 cal I looked on the Schumann sight and see .400 short chamber and 40sw barrels what's the difference?? I tried dropping my rounds in it but there not going in all the way? Is this the wrong barrel? Does something need to be do e to the barrel to work? Link to comment Share on other sites More sharing options...
BrianATL Posted March 16, 2015 Share Posted March 16, 2015 Chamber needs to be lengthened with a 40 cal reamer Link to comment Share on other sites More sharing options...
trp Posted March 16, 2015 Author Share Posted March 16, 2015 Is a 40sw barrel at like a .401 or somthing my round is getting tight right around the bottom of the of the where the bullet sits in the brass I'm useing boyous at .401 Link to comment Share on other sites More sharing options...
Toolguy Posted March 16, 2015 Share Posted March 16, 2015 A lot of aftermarket barrels are short chambered so a gunsmith can set the headspace when building a gun or replacing a barrel. It just needs the chamber reamed a little deeper. Their 40 S&W barrel is probably the same thing that doesn't need fitting. Link to comment Share on other sites More sharing options...
JonSnow Posted March 16, 2015 Share Posted March 16, 2015 (edited) Short chamber means the chamber wasn't cut to full depth. They do that so that the gunsmith installing the barrel can set the headspace unique to the gun it's going on but still save wear and tear on the gunsmith's reamer. ETA: Toolguy beat me to it while I was typing. Edited March 16, 2015 by JonSnow Link to comment Share on other sites More sharing options...
trp Posted March 16, 2015 Author Share Posted March 16, 2015 Ok I get that length part but what about the width? Is that a little tight for some reason also? Link to comment Share on other sites More sharing options...
technetium-99m Posted March 16, 2015 Share Posted March 16, 2015 The reamer will also slightly cut into the chamber walls. It just needs finishing. Link to comment Share on other sites More sharing options...
trp Posted March 16, 2015 Author Share Posted March 16, 2015 I talked to my gunsmith he straightened me out lol Link to comment Share on other sites More sharing options...
cnote Posted March 16, 2015 Share Posted March 16, 2015 :angry2: Link to comment Share on other sites More sharing options...
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