I should've mentioned that I am shooting almost 12 grains of total arrow weight per pound of bow weight...11.7777 to be exact. My arrow has quite a bit of FOC, but I haven't calculated the exact percentage. I take my time and bare shaft tune to get the best arrow flight that I can. There is no doubt that that a heavier arrow gives you better penetration and while I didn't strive for a high a FOC, I did end up with it.
I was thinking that this is the lightest bow that I had ever taken game with as most of my bows for the past 30 years have been in the mid 50# to mid 60# range. I remembered that in 2001 or 2002 I traded for a MOAB that was listed as 51#@28". Lighter than what I was used to shooting, but I wanted something for late season when I was all layered up. Received the bow and took it out and shot a dozen or so arrows after work under the dusk to dawn light and it shot perfect for me. It felt really light and smooth, but I had been shooting 60# so I expected it to feel that way. I took the MOAB hunting the next morning and shot a doe at 25 steps. Pass thru and she went over the hill about 45 yards and dropped. Great blood trail using an old Wensel Woodsman with a 125 grain steel adapter.
Took care of the deer and was cleaning up my gear and took a good look at the bow. It was marked 51# at 31". I couldn't believe that I'd shot a deer with a kid's bow!! Pulled it with my hand held bow scale and it was a tad under 45#@28". Even though I had just made a clean kill with the bow I wrote it off to luck and put the bow up for sale. I was firmly entrenched in the "you have to shoot at least 50# to kill a deer" mindset. I sure wish I had that bow back now! Beautiful black and white ebony MOAB that shot like a dream.