In comparing my brass to other Enfield fired brass, there's no problem. Now I just have to figure out how to get my Sierra 125's into the case mouth. I've been told it might be a chamfering issue. The Hornady boat-tailed 174's load fine because of the boat-tail, but the 125's are a regular flat-bottomed design and won't rest inside the case mouth. And here I thought loading for a rifle would be easier than for my .45.