FX In search of 215 ft lb from FX impact M4 .35

Considering FX is listing the max output at 156 fpe (and that's with max everything) I'd say you choose wrong.


9,00 (.35: up to 211 J – 156 ft/lbsNote: above figures are maximum FAC Power output using slug ammunition, slug powerkit and 800mm barrel.
 
I've been down that road and made 200 ft lbs with modifications. I felt that it was being pushed past it's limits so I put that 800mm barrel in my Panthera and was able to make 215 ft lbs with 108 grain NSA slugs which I felt was right at it's maximum for power for the gun and bullet combo. I did take 4 whitetail with it last year but the panthera was too long with a Donny emperor on it so I now have a 357 bulldog I am working on.
 
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