Ok that sounds good. I knew you wanted 0.001” over but didn’t know how much was too much. The Whitetail #4 is supposed to be slightly bigger for Marlin micro groove barrels. I’ve used Acme 0.3095” bullets and they work fine but they don’t make bullets heavier than 150 grain. Hopefully these will be a little more accurate but the Acmes are already better than jacketed in that regard.