I shot the bullets as cast & lubed. They measured on average .3595 The bore measured on average .3582. They were cast from Wheel weights and were pretty hard. The same bullets shoot pretty good in my 357 Max with no leading that I can see. For some reason I am missing the type of powder used in the rifle but think it was 3031 but I may be wrong. In the Max I have loaded 4227(IMR) and it works pretty well. Have some other loads and they are very good performers. I shot some 158 gr hard cast bullets in my Contender 35 Rem with Unique..they shoot good too. A LOT more fun than factory 35 rem loads. I happen to have 9 boxes of 200 gr factory loads and a couple boxes of older 180 gr Corelokts. The 180's are ok in the Contender as the recoil is definitely easier to take. Accurate too. I have another Remington(7600?) pump in 35 Rem and it shoots the 158's really well. NO recoil.