I just started loading for a Browning 1885 45-70. I'm working on a load for the 350gr Lazer Cast using H4198 and Varget powders. First loads tried all had a moderate crimp and CCI 200 primers. I know a crimp is not necessary as far as the rifle is concerned but would a harder crimp help in getting a more complete burn w/Varget which was very dirty. Going out today with all uncrimpted loads and a magnum primer in the Varget loads only. I'm looking for 1500fps give or take and have it with 39gr of 4198 and 50 gr of Varget.