Does this sound right ?
06-01-2004 | 04:31 PM
#1
Thread Starter
Senior Member
Joined: Aug 2003
Posts: 4,103
Likes: 0
From: Ocean Springs, MS
Does this sound right ?
I shoot a 26.5 dl, 51 lbs, and a 338 grain arrow. My ibo is 294. My speed I am getting is 209. I only have a string loop and a peep site on my string. No rubber tubing either. Should my fps be higher ? Thanks
06-01-2004 | 06:41 PM
#2
Nontypical Buck
Joined: Feb 2003
Posts: 3,215
Likes: 0
From: Martinsburg, WV
RE: Does this sound right ?
I shoot a 26.5 dl, 51 lbs, and a 338 grain arrow. My ibo is 294. My speed I am getting is 209. I only have a string loop and a peep site on my string. No rubber tubing either. Should my fps be higher ? Thanks
3.5" off 30" = 35 fps
259 fps.
83 grains over ibo 5 grains/lb
259 - 15 = 244
7 fps off for the peep and loop.
244 - 7 = 237 fps. my final answer....i think
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06-02-2004 | 06:37 AM
#6
Boone & Crockett
Joined: Feb 2003
Posts: 12,157
Likes: 0
From: Lehigh County PA USA
RE: Does this sound right ?
Josh; Did you forget almost 20 lbs of draw weight?
19 lbs under IBO test standard = - 33 fps
237 - 33 = 204 fps
Your speed sounds very close.
