Just my opionion from testing them. We feel that is what you need. I know there are several types of jakhammers and up to 1 3/4" cut. Im not 100% sure what cut is on 100grn. I actually have pack of 75grn jakhammers now I intend to use.
I do know you can shoot them completly thru a 55 barrell drum and they stay intack.
Tuckarch has shot them and experence good luck. Best test is try them and see. I know after one or two deer if broadhead is for me.
I have seen many deer shot with mechanicals and they do work.
Rocket21, my 75 grain 1 1/4 inch Jacks pass through with ease and I'm at 60 KE. (Whitetail.) Should be no problem with the 100 grain 1 3/4 inchers. As long as you hit the vitals!! You'll be pulling them out of the ground. Last year I had a pass through on a younger 8 point and I busted his shoulder blade also.
I shoot 60/27 @ 252 fps. If I recall I believe I'm getting around 43# KE. I shot a cow elk on Tuesday at 20 yds. The arrow buried up to the fletching penetrating the back of both front legs and the heart. The broadhead, an 85 gr. Thunderhead, was sticking out the far side. It did not hit any ribs or other bones. She went maybe 60 yards.
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