I'm posting this here to avoid hyjacking another popular post. This quote comes from a discussion on different methods of fireforming brass. [ QUOTE ] With live fire fireforming loads, it is nearly impossible to get pressures high enough , quickly enough to prevent these pressure dents. Believe me I have tried. Even used MUCH faster powders and lighter bullets. [/ QUOTE ] I am constantly on the lookout for info I can apply to a dream gun I will hopefully build someday so I'm wondering, will this apply to fireforming a .280 Ackley Improved if the chamber is cut correctly so the bolt holds the parent brass forward firmly in the chamber? I have heard that excelent groups are often possible with fire form loads and that it is common practice to develop a useable hunting load while forming a large batch of once used brass. Would it be better to cornmeal form through a scrap bbl to get good brass or would the brass turn out ok if a second sporter gun was made and have the chamber cut from the same reamer for shorter range hunting with live fire form loads?