OK you BP geeks, here's the question. I have a nice Uberti Walker cannon. I shoot .453 round balls backed up with 60 gr of BP or equivelent with no problems. Now that I have all these .429 JHP 240 gr and .430 semi wad cutters could I SAFELY shoot these things with less powder charge? They're smaller diameter but much heavier. Think I should leave well enough alone while I still have two hands and eyes or shoot some of this stuff? Both would be much more effective for deer without doubt.