Here is the FTX shot from my Marlin 1895XLR (Yeah....I know this is an H&R forum.....but I do own an H&R!!!....it's a 22 mag.....but I own one!!!). This is a 4 shot group at 100 yards. I was zeroing in my Williams peep sight.
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Then once I got it zeroed in, I made some "click" adjustments to my Williams peep (I have the target model) and this is a 4 shot group at 200 yards.
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This is the FTX traveling at a very consistent 1700fps across my chronograph. Of course, I'm shooting it from a bench.
For whitetail, this will be plenty of punch.
BTW, I have shot this load out to 300 yards. I've gotton two of the three to touch, but that third "flyer" is about 3/4" away from the first two. Such a disappointment! I can't use it on crows!!!
Dave