Correct spine for 175 point weight?

[kad11]

I just bought a new Bear Anarchy HC 60-70 lb with 29 inch draw. I would like to shoot 175 grain point weight on a GT Hunter Camo 300 spine arrow (10.9 gpi) that will measure around 30.5-31 inches. Do you guys think these arrows will be stiff enough to shoot at 65lbs? I'm wanting to shoot a 500-550 grain arrow.

 

[2blade]

According to OT2, which I find to be quite accurate, if the arrows are really 300 spine and not 340, a 30.5" arrow will work perfectly. 31" will be on the weak side.

 

[kad11]

Thank you for your response; I ended up finding a dozen GT Kinetic XTs 200 for a good price. Those arrows should allow me to shoot heavy BHs and up to 70 lb draw without any trouble. Can anyone think of a reason not to shoot 75 gr brass HIT inserts in the Kinetic XTs with a 200 spine?