anton Posted December 5, 2003 Share Posted December 5, 2003 I have a .40cal barrel that was over throated - or too much lay on the ramp down. Part of the case is exposed when a round is chambered since its not fully supported anymore due to the overthroating. When I use fast burning powder such as N320 at 170pf(or over) load, the unsupported part was bulging but there's no case bulging when slower burning powder is used such as N340 or N37. Aside from risk of a case failure, what other detrimental effect to the gun if I continue using the barrel. Thank you, any help is appreciated. anton Link to comment Share on other sites More sharing options...
bountyhunter Posted December 5, 2003 Share Posted December 5, 2003 I think the possibility of catastrophic case blowout is basically the risk of an unsupported .40 barrel. FWIW, I used to buy my .40 reloads from a guy who bought all the local police surplus brass (once fired out of Glocks) and you could see a slight bulge in the brass where it was unsupported. I never had a problem. IMO, the .40 kabooms require both an unsupported barrel and either a case that was reloaded too many times or loaded up too hot for sanity. Link to comment Share on other sites More sharing options...
Flexmoney Posted December 5, 2003 Share Posted December 5, 2003 You might want to get a picture posted of what you have. Hard to tell without seeing it. Link to comment Share on other sites More sharing options...
benny hill Posted December 7, 2003 Share Posted December 7, 2003 Get the smith to replace it. Link to comment Share on other sites More sharing options...
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