I agree with DM. It might be kinda fun to play around with cast bullets for high volume pursuits like plinking or small game, but for bigger stuff I would stick with bullets made for full throttle expansion. The 300 gr. Barnes X bullets are another very good hunting bullet for this caliber. And the 405 gr. Remington JSP can be purchased in bulk at not much more than the cost of lead. These shoot well in the Marlin Microgroove barreland expand like gangbusters at around 1800 fps MV.