I only had handgun caliber collets and not a 308 collet for my RCBS puller and my neighbor lent me his Hornady Cam-Lock Bullet Puller (#050095) and collet to pull a bunch of 308s. I liked it so much that I bought my own as soon as they were available. I liked the lever design so much better than the RCBS screw design that when I discovered an inexpensive lever mod for the RCBS puller on Snipershide.com (RCBS bullet puller Mod for COAX press). I purchased 2 and gave one to my neighbor. Did not have to make the cuts the author mentions for it to fit my RCBS Rock Chucker press. Recommend the Hornady for 308 bullets. Pulled about 100 without marking them up.