Getting back to heavy loads, my heaviest exercise was working up loads for my .460 with 550gn Woodleigh Weldcores and some 600gn Barnes Originals I had on hand.
The 600 grainer's topped out with 116gn IMR 4350 at 2460fps and 8064 FPE. Ultimately I settled on the Woodleigh bullet at the same velocity, because of availability and construction, which was superior being a bonded bullet, compared to the "tube" cup and core Barnes product. I recovered one weighing 458 grains which is quite good weight retention from a lead core bullet.
John
