ORIGINAL: txfireman
I thought through the same issue last year until one day shooting at the deer lease using Pyrodex pellets and 250 gr. Shockwaves. I had touching consistant groups 3" high at 100 yards. Shot over 15-20 times and had no issues. With that being said, I'm going with the if it isn't broke, don't fix it.
You shouldn't, I you have a load that is working for you in your rifles, why change it? Use it and good luck. Chap Gleason