Switching bows...arrow spine question?

[duck'n]

Well wouldn't you know I just got my Hoyt all tuned up with a fresh set of Beman 400's and along came a used Mathews I just couldn't pass up. Now my problem is on the spine charts going to a single cam bow in the 65-70 lb. range my 400's are showing too weak. I really hate to buy new arrows if I don't have to. The 400's are showing marginal if I drop the poundage into the low 60's. Would that work for now until I need new arrows? I don't mind shooting low 60's for now. If it is marginal at best, I could always sell the 400's and buy 340's but I may push my wife over the edge!!!

[DeadEyeB]

how long will the arrow be?

[duck'n]

Sorry about that...they are cut 29" and my DL is 28"

[muddyfuzzy]

drop the poundage on the bow, mid to low 60's is where its at!

[DeadEyeB]

I'd cut them a little shorter personally.. of course it depends on your rest, but if you can get that arrow closer to 27" the 400 spine is perfect for you at 65lbs

[duck'n]

Roger that! Which brings up a side question. I don't have a bow scale so if I max out the limb bolts...is there a set amount of turns I can back them out to hit low 60's or is the only safe way to do it with a draw weight scale?

[PSD Ryan]

Compounds run better over spined than under spined. Id drop poundage and/or cut them shorter

[DeadEyeB]

Roger that! Which brings up a side question. I don't have a bow scale so if I max out the limb bolts...is there a set amount of turns I can back them out to hit low 60's or is the only safe way to do it with a draw weight scale?

Yes every bow has max turns that it can be backed out. You'll need to find that out first.

It's probably between 2.5 - 4 lbs per full turn.. You should be able to find the info on the web.

[coopaloop108]

i shoot a mathews z7 the spine chart for the maximas i shoot say i should be shooting no less than a 350g arrow and i shoot 250s all day long idk how much i trust spine charts!!

[Texas Stalker]

I shoot a Z7 with easton axis mfx infused 340's if that helps. I'm at 70lbs and they shoot phenomenal with a 100 grain slick trick. 28.5" draw and 27 3/4" arrows. Good luck.

[bowhuntntxn]

i shoot a mathews z7 the spine chart for the maximas i shoot say i should be shooting no less than a 350g arrow and i shoot 250s all day long idk how much i trust spine charts!!

I think you are confusing spine and weight. Your arrow will weigh more than 250 grains, but have a 250 spine.