Brent, For 2&1/2 inch chambers I use Cheddite 2&1/2 hulls or trim them to that length. For 2&3/4 inch chambers use as they come. If your firing pins are not too long use the Cheddite primers. If I get pierced primers I switch to Winchester primers. I have settled on OE 1.5 fg for both 16 and 12 gauge. GOEX 1 fg for the 10's. 2&3/4 dram for the 16, 3 dram for the 12, and 4 or 4&1/4 dram for the short 10. 7/8 oz.-16, 1 oz.-12 and 1&1/8 or 1&1/4 for the 10. You can use paper or plastic and I like papers if I can get them. Precision Reloading has Cheddite papers in 12 gauge in stock. Ballistic Products also carry them but are currently out of stock. I got my 16 papers from them. and they get them in from time to time. Very nice 16 gauge hulls! RST has paper 16 in stock and they crimp with a fold crimp. Buffalo Arms has the OX-Yoke 12 & 16 pre-lubed fiber wads and Circle Fly overshot cards .025. Precision has 1/8 inch felt spacer wads and 1/8 inch nitro cards. 12 gauge 2&1/2 loads as follows: Powder, 1/8 inch nitro card, fiber filler wad, overshot card and 1 oz shot, finished with a overshot card and a roll crimp. Roll crimp just looks so right. 2&3/4 inch I add the 1/8 inch felt spacer to take up the extra room. If I load a 1&1/8th oz I omit the felt spacer. OE is faster and cleaner than GOEX and I can shoot a full 50 round clays course without having to clean between stations. Works out great!! Since there is no shot cup used I clean very good to not allow any lead build up in the barrels. My guns pattern quite well with these loads and I just switch to larger shot for hunting.