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Just interested in your opinions.

With a 27 inch draw, and a 450 grain arrow, what poundage would you likely need to be shooting to average 180 fps?
 

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Depends on the limbs. You also get to a point where increasing poundage requires increasing arrow weight. I was over 180fps with 450gr arrow with 30" draw with only 38lbs using Border hex 7.5 limbs. They are much faster than my Ult pros of same length and weight judging by point on distance.
 
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I rigged a Polaris 23" riser (from the 66" T/D model) to 40# Samick Journey limbs (from the 64" model with 19" riser and 40# at 28") to make a 68" bow with an estimated 36# at 28". I draw 31+" (so, about +7# = 43#) and hit 184 FPS on the chrono. Arrows are full length GT Hunter 5575 (400 spine) 125g tip 3 feathers 417gr.

My old 1962 Bear Grizzly 40# @28 shoots same arrows 180fps at 31" draw (again, about +7# to 47#)

Kenn1320 is doing it with 38# and a nice limbs, I am a bit lower tech with my 43# bow combo and shooting a bit lighter arrow.

This info gets you in the ballpark. Playing with the Stu Miller spine calculator, with Kenn1320 and my info, if you had Kenn1320's setup at 27" about 44# would be close for 450g arrow, mine at 27" you would need more like 49#. YMMV of course.

I am curious what others get with their configurations.
 
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