lemoyne said:

Pglasgow, I used to hunt the open corn fields in IL and I also shot a lot of pratice for the 177 yd hawken match I have taken 3 deer and a bear at 175 plus and they all dropped in their tracks on the spot they were hit all were standing shots and all were hit on the back edge of the frount shoulder all were shot with a 54 cal RB hawken and with a V peep that I made myself the Hawken had a 35.5 inch barrel and could be depended on to shoot 5 shots in less than 20 inch string measure. I shot 130gr ff black and a 535 ball an ticking patch lube with veg. oil.

Given a .45 a roundball is adequate, then your load seems perfectly adequate at the above mentioned range.

Happy Hunting, Phil