Not too much in my experiences. I shot 2 in speedhunters and feathers . the feathers only hit 2-3 inches lower at 45 yrds.
ORIGINAL: mauser06
ive always heard hard helicals and feathers cause speed loss because of more drag....but how much really?? guess i gotta setup a chrono if i ever get one and find out

man i need to buy one...i got 10003 uses for one...i rather have accuracy over speed...if the loss aint THAT great, but the accuracy gain is noticable, im all for it.
let us know how it works for ya BC! are them 4 or 5" vanes??
good color combo too i might add

thats the colors of my blazers this year