I also have a .54 caliber Renegade with a T/C tang peep sight and this rifle will take a deer any day of the week out to 100 yards but I have never had to shoot more then 80 yards

. I shoot my own conicals and round ball that I cast. I make a 300 grain and 380 grain LEE R.E.A.L. conical & .530 round ball of course.
I have shot the T/C maxi ball, maxi hunters, buffalo bullets and great plains big conicals out of the rifle and all of them shoot excellent. I will not kid you, the 300 grain LEE R.E.A.L. conicals are really accurate. I shoot 80 grains of Pyrodex under them and they are deadly.
The best way to find out if your rifle shoots the lighter conicals better is to try them. All these rifles are a puzzle unto themselves. What shoots good in one may not shoot in another.
The Renegade is a great rifle. Mine is a very old one with the double triggers and there are many deer that found out how accurate this rifle is.