Elkstalker makes a great point. The Barnes bullets are a great bullet and are a fail-safe, fully expanding AND pass thru almost every time.
However, the old power boobs will work if you increase the weight to 348 copper or the
338 Platinums and slow them down.
The key to shooting/hunting with powerbelts is to keep your speed between 1400-1000fps. 80g of powder, or one 30g & 50g pellet, will get you about perfect speed. This set-up will be very lethal from 20-120yards. Many folks experience the "Disintegrating" effect because they over-drive them with 100-150g of powder.
One other note, is that alot of Triumph shooters are very pleased with the 250g Hornady SST and 100-120g of powder. The SST is a sturdy bullet and can perform very well at higher speeds
My favorite load for 300g Platinum 45cal PB's is 60g of powder. Never explodes on impact, and usually is just a Boom Flop.
tide