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Old 03-31-2006 | 03:59 AM
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buckeye
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From: The OH-IO
Default RE: 285 fps vs 305 fps, pin gap etc...

buckeye, that was good info. I've often wondered the ballistics on that. Thank you. How much different are those numbers depending on arrow weight?
Arrow weight makes no difference it is all about speed and the drag on your arrow. All of these numbers were ran thru On Target2 out of a BowTech Allegiance shooting Gold Tip 22 Series Ultralight Pros with 4 inch Low profile Bohning X vanes.

BBH, I'm not totally doubting those numbers however I'm asking if this is out of a shooting machine or mathmatical assumptions?

My question then becomes why can I take nocks off my arrows and/or hit my mark with my above numbers at either 285 or 305 fps.....with your numbers I'll be two inches low between the two numbers and that has never been the case with me or any of my friends. I wouldn't be able to dial in my sight and still be dead on however it is equal. And pin gap on fixed pinned sights don't change between the two speeds and still be dead on....to group dead on...

As I stated to Mobo the numbers were ran thru On Target2. I can not answer your question...... It kind of defys physics


I took my Sure Loc / Cobra Sidewinderoff my Allie when I bought the Spot Hogg and put it on my Tribute.

Ihave smooth mods in my Tribute currently for my hunting setup. At 5gpp (for testing and comparing)with a loaded string it shoots 305FPS. The Allie that the sight came off of at 5gpp with a loaded string (minus string silencers) shoots 319 FPS.

After I got the 20 yard pin sighted in (using the micro gang adjustments) my 27 yard pin I didn't move but a very slight amount. Althoughmy 32 and 37had to beadjusted as they were both coming in hot.

Look closely at the numbers that were given by buckeye. 4 inches sounds like alot. Break down that 4 inches and that calculates to .2 inches per yard. Take a 3 yard misjudge in yardage and you are now talking about .6 inches difference between the speeds. I would say that a real good group at 40 yards would be about 2 inches. Move the 2inch goup down .6 inches from the other and most of the arrows would overlap. So your 40 yard pin would be about the same for the 2 speeds.
I think this is the best possible answer for your experiences???


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