I'd carry it for protection...dogs/coyotes/undesirable people, and the occasional shot where I can't get the rifle around which I seem to be up to my neck in this year (IE to the hard left since I'm right handed, behind or below the stand, ect).A hard cast will work great. Why only 15 yards and only on small Deer? I've taken Deer with the 45 ACP and at 50 yards it kills thme as dead as anything else
A friend shot 3 deer with .44 and .45LC heavy swc loads. None stopped short of 200 yds. He was very unimpressed. He switched to 180 gr jhp's. he shoots sub 100 lb Ark deer, btw. I'd been telling him for years that the big, slow heavy stuff was low grade, but he had to find out for himself. Yes, if you poke a 1/2 " hole thru both lungs, he will fall eventually. The issue is, will that be close enough for you to find him, before night falls? For an SD load for use against men, they are a big mistake.
I agree... either he cannot shoot or he's fabricating his tale to you. SWC bullets cause havoc and terrible destruction, usually, and especially in the big bores, in my experience.A friend shot 3 deer with .44 and .45LC heavy swc loads. None stopped short of 200 yds.