With a 1:48 it is your choice. With a TC renegade 1:48 for over 20yrs I shot a variety of conicals. Some people prefer to stay traditional and only use balls. Some even use sabots, tried a few but never found an advantage and very difficult to get down the barrel. I guess about 25 yrs ago I settled on powerbelts. The 245's in the renegade did real well with deer giving a big wound cavity. Previous conicals, maxi-balls, great plains, shot good but seemed like little shock, tremendous penetration, 50 cal exits, excellent blood but sometimes went pretty far. The powerbelts seemed to give more shock putting them down in a shorter distance and apparently expanded well with larger exits. Powerbelts are very accurate, easiest to load, downside is expense. But I'm only a big game hunter, rifle has been setup for many years, I only shoot a few shots a year so expense is irrelevant. Not sure how many deer I've taken, taken bull moose and elk (both no exit), javelina, crow, groundhogs, with powerbelts.
Suggest you try both roundball and not so expensive conicals, until you develop your own taste on how you prefer to do it. If you decide conical then try a few types.
Goex is easier to find and less expensive, Swiss is more refined and more expensive, but goex works just fine for hunting. In the renegade I used Goex in the barrel and initially Goex then Swiss in the pan.
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