whata pal ....that is better than a sharp stik in the eye...... hey swampfox have you been too A R bunker ...they got some 54 in stock over there....cant remember which ones but might be worth a looksee....PM me your address and I can send you some 425gr. Minie' bullets to try.
DID THAT in my 50 cal. with hornady .44 210 gr. gold dot hollow point an it blowed out like a quarter almost.....an held together awsome as well......Ya could try sabot/44mag pistol bullet combo.....
Should expand better than a solid chunk of lead....