does anyone use 85 grain broadheads in your set up,my new bow i got they recommend me useing them with my setup, i think its kind of lite, iam shooting a reflex griz. draw length 28 1/2 ,arrows g/t 5575 hunters at26 1/2, set at 68lbs right know its shooting 273f.p.s. on the chronograph, any info wuold be great

Sounds to me like somebody's got a lot of 85 grain heads they can't get rid of.

If your arrows are fletched with 4" vanes, with 85 grain heads your FOC will be just under 8%. I wouldn't go that low for a hunting arrow, especially if you're talking fixed blade. 100 grains will put you around 9.5% for a more stable, and probably more accurate, arrow and might slow your speed down to 272.

I can use 85 head pretty effectively, but because of my short draw length I use shorter arrows. I shoot like 25-26 inch arrows with feathers, so FOC is never much of a concern for me. I shoot 100 grn most of the time any way just because there are more available.

Personally I like 85 grn heads in a fixed blade with my set up, and for mechanical heads I like the 100 grn nail drivers.

My opinion is probably much like Arthurs, once you get into a "normal" length arrow and shoot vanes you should be looking at a 100-125 head.

Paul