I am near 81 years old. I started bowhunting in 1956 & have 6 decades +. In my young & stick bow days b/4 compounds I used for hunting "mostly" in the 55# s for hunting. Couple years 60#s..(Elk, Hogs & many Deer with 55#s) I competed heavy then & I used 38#s & 42#s for field (112 arrows) & Target (90 arrows) & indoor (60 arrows). Compounds took over & I "still" kept in the 55# range on average thru the 70s, 80s. Early 90s I went to 70#s with a 40% letoff for about 10 years. Then, I dropped back to 60#s again where I am now for hunting. I had no problems shooting the 70#s just realized the tech was much better & anything I was hunting 60#s was more than enough. Now, still competing I use 45#s 75% for ALL outdoor targets (Field 112, target 90 & 3Ds 40 arrows on average). Indoor gets 50#s & 70%. Bowhunting is 60#s & 70%. Now, my Longbow, used for both is 50#s & I shoot with fingers, no sights. I did the 5 day NFAA Field Nationals in Pa in 2015 with it. You do fingers & 112 arrows a day + xs FOUR & 28 the last day & you will know what tough is.. 70#s & 60-70% letoff will be a breeze. When I went back to 60#s the FIRST critter I took was a Cow Buffalo at 42 ranged yards & a complete pass thru at least 20 yds beyond the initial hit.. If a person is into back yard shooting & bowhunting only with an occasional 30-40 arrow shoot 70#s & high letoff may great for you. IF you have 1 bow, 70#s & are going to shoot a field round (112 arrows from 10 thru 80 yds) or a target 90 arrow round, you will "know" if your overbowed by the end.. Heavy bow for "most" requires several arrows in practice & on a regular basis. I say, if you can sit on a bucket & shoot 20 arrows accurately your good to go. Old bowhunter, old ways. Top down pics.#1 animal-Bear 55#s #2 small buck 53#s BUT LOOK at the leg. I had a pass thru that exited into the ground & never broke the leg, just a 3 blade hole you can see. #3 pass thru 55#s #4 55#s pass thru, watched him drop #5 55#s 20 yds pass thru. #1, #2, #4 # 5 all with the same Darton SL50. #6 53# Groves Spitfire recurve, 35 yard pass thru.#7 Caribou, 70#s #8 Water buffalo
Water B, bowhunted hard, 70#s & 800 grain arrow but never got close enough. 1 shot 225 yards with my guides Elephant gun after nearly being trampled, last day, last hour of my hunt. NOW, the top photois what happened when I leaned in close to the scope. A reminder scar in my brow of my one & only ever biggame kill with a firearm.