I have been buying 45-70 bullets from one manufacturer and recently decided to try another. The new bullets on the left in the photo look pretty good, but the lube is flakey and tends to not stay in the groove uniformly. The old bullets on the right look even a little better. The old bullets lube seems to be very uniform and well seated into the lube grooves. Also the gas checks on the old bullets on the right look to be deeper than the new ones on the left. My question is from an accuracy and leading point of view will it really make any difference?