I need some advice on headspace. I have a 45 acp in 1911 that is Vietnam or WWII era that has been through a gunsmith from Fort Knoks. It has a hair trigger. That is how I got it. I bought it from a police officer that was unloading to clean when it went off, went through the wall and missed his daughter by a few feet. I love the gun because of the less than 2lb trigger. I have shot it for ten years with no problem. I got into reloading last year for my 25-06 and recently decided to load up some 45acp. I was confused about the taper crimp. Ammosmith.com u-tube vids helped more than any of the 4 reloading DVDs I have. Anyways long story short. I was having problems with the rounds being flush with the hood tang. So I called my daughter and had her bring me her 1911. I found my handloads would only chamber half way in hers but would mine fine. So I increased the taper crimp to my round until it would drop in and fall out no problem in hers. I am testing my handloads, a remmy, a winchester and an unknown hollow piont. They all drop into my daughter's 1911 and are flush with the hood tang. Now when I drop into my chamber they are all 1/8 below the hood tang. the brass is touching the ring inside the chamber and make a nice ring when you drop it in. when I cycle the 1911 without the spring I find the rounds come up out of mag then headspace against the breach face held by the extractor. Everywhere I read they say the 45acp headspaces off the case mouth but yet I find the extractor holding the case head against the breach face so how can this be? My question to the experts is do I have a problem here with more than 1/8 inch more headspace then my daughter's 1911? Is this dangerous. I have shoot it hundreds of times with no problem. I guess I will never need to trim a case. I could make some really tight handloads but they won't fit any other gun.... Any advice would be much appreciated Thanks I will be at Knob Creek on the 18 for the National Machine Gun shoot anyone else going to be there???