I am new to the 45/70. Most calibers have an optimum bullet weight for a given twist rate. My question is what weight bullet is best in terms of accuracy for 45/70 1895 SBL with 1:20 r.h? Secondly, what happens in terms of accuracy and stability as one goes to the lightest and heaviest bullets for this set up. Any tips would be greatly appreciated. Thanks in advance for all responses!