I will just add that I have two Delta's and I would not be afraid to shoot any factory or book loads with them. My go to, everyday load, sends a 180 grain bullet between 1275-1300fps out the barrel. I have shot slightly hotter through them. They are harder on brass though. So are my stock Glock barrels. If you do not reload or worry about your brass I would highly recommend the Delta. Great guns. The Dan Wesson's are very good as well in my experience. Very good chamber support. Proper recoil spring is a must in any 1911. Especially 10mm.