I have another suggestion, a scope . I realize hunting with iron sights is more of a challenge, etc, etc. but ....been there , done that. You didn't mention your age, but as the body ages so does the eyes....a hundred yards with iron sights looking through old eyes...we have to be realistic. When I was hunting with my SRH, it was open sighted.....I used the 50 to 60 yard mark as my max distance. Finally, I had to face reality,........now I have scopes on my hunting handguns. Now 75 to 100 yard shots ( with any available rest ) are possible. In closing..........shooting from the range is completely different from walking or posting in the woods. Good Luck, handgun hunting is truly rewarding.