I have several rifles in several same calibers. Some calibers of which I have MIL SURP cases for. My question is, can I use say the .308 SB die to body size .243 cases and then run them through a Lee collet die for final neck and shoulder sizing, and similarly run 25-05 and 270 cases through an '06 SB die and do likewise? I have a couple buckets of .243 brass which is mostly once fired, some has a few loads through it. Some of it after standard sizing and loading, will chamber in all three of my rifles and some won't. I simply want to size all of what I haven't already loaded to minimum size so I don't have to sort through it all and devide it accordingly when I get ready to load a few boxes of ammo. I do not load to BR standards in any of these rifles as the developed loads shoot very well. I just hate it when I finish a box and several of them will not chamber in the rifle they were loaded for. Same goes for the 25-06 and 270 cases. No telling how many I have of the .270's but I know it is close to a full 5gal bucket, with several gallon bags of it that I use for hunting loads. With the 25's, I have three full gallon bags of and one of them I know was once fired from a rifle that the reamer did a number on the chamber. They are great cases but will still not chamber after standard sizing in either of my rifles. Not that I will be using them for anything great but the way things are I hate to toss them simply due to sizing issues. Is there something that would prevent this from working, or should I just go ahead and go for it? Right now with the abundance of surplus cases I have in 30-06 I will have to get a SB die for that anyway, and I already have the .308, so at most I am looking to get a couple sets of Lee dies to add to them. From what I have gathered the Lee Collets are good for holding tolerances in the right places so figured they would be the cheapest route to go. If you have any suggestions one way or another please feel free to throw in on this, as it stands now however I have a LOT of brass that is just gathering dust. My only thought of issues would be the shoulders being set forward when going through the larger caliber SB die, and then not being able to set them back with a standard for caliber die. Still, I am not sure it wouldn't work out fine either. Thanks, and post up your thoughts on this.