Lyman Top Punches are precisely machined to fit the bullet nose shape exactly. This eliminates nose deformation. Fits Lyman 450/4500 Lube Sizer and RCBS Lube-A-Matic-2 Bullet Sizer/Lubricator. Fits the following Lyman Bullet Molds:Midway USA Product #436-524-- 375 Caliber, 38-55 WCF 248 Grain Flat Nose.Midway USA Product #412-412 -- 38-55 WCF 264 Grain Flat Nose Gas Check.Midway USA Product #469-685-- 40 Caliber 400 Grain Flat Nose., Reloading Supplies,Bullet Casting,Top Punches SKU - 4657431234