Hello Folks. Have been getting back into traditional archery the last couple years. I have a couple questions I need some help on. I am shooting a Predator Classic 52lbs @ 28". I can consistently hit a 8" circle at 15 out to 20 yards. I am shooting a carbon arrow 400 spine (Cabelas Stalker extreme 55/70)@ 8.4 grains per inch, that I added 100 grain of parachute cord to the inside as weight (trick I saw here). My total grain weight for the arrow is 625 grains. I like how quiet the bow is now. But, I was curious and shot through a chronograph and could only push 149 to 152fps. Is this, in your opinion too slow for deer hunting if I limit my shots to 20 yards? Am I too heavy for the 52 lbs of pull.
I did a FOC calculation and had 9.7 with a KE of 31.98
I look forward to some enlightenment. I thank you for your time.