Velocity Question

[slivoskisp]

I recently replaced my string on my PSE Fire Flight. Shooting thru a whisker as before, however I have lost alot of velocity at 35-40 yards. Meaning at 40 yrds I drop 18 inches from before I replace the string. I was using one pin but now I am forced to use three. Is this a common occurance...any thoughts/suggestions?

[yippy]

Did you check the poundage before and after? Could be incorrect string. Do your cams pull over at the same time?

[slivoskisp]

I took it up to Shooters Service in Livonia to get the string replaced. My next step is to take it back up there to see what they say. I figured I would get some info from the experts from MS. To answer your question about the poundage, I had it set at 65, I will have them check it. I did mark my limbs when it was set at 65 and they are still on the mark. My cams do pull at the same time.


Thanks

[wecker20]

Is your anchor point still the same? Seems kinda odd.

[Kelly Johnson]

Sounds like you lost poundage. If your 20 yard POI is the same and you have the same arrows it can only be a poundage issue provided your windages are all on.

New string can do that sometimes if not twisted up properly. Even though the "proper" string length has been used you can gte as much as 1-2" diference in how many twists are put in the strng or cables.

I bet a few twists and a check on draw weight to make sure your limbs max at 1-2lbs over limb peaks should set you straight.

[Buckmaster Flash]

Was it just the string that was replaced, or both the string and buss cable. As much poundage/speed as you have lost, sounds kinda like a buss cable that might be a little to long and/or not have enough twists, but it could just be the string stretch issue described at winnerschoicestrings.com. This is from the Winner's Choice Strings website:

Q- My bow has lost poundage after I installed my new strings. Is this normal?

A-The normal cause of this problem is usually a problem with the strings you are removing. As the shooting string elongates, or "stretches" which is normal for most other string brands, the poundage as well as draw length increases. It is common for shooters to be unaware of this condition because it is usually a slow process and is many times not noticed by the shooter. When the string is replaced, even though it is now back to the factory specification, the poundage will be less than with the stretched out string. To regain the poundage tighten the limb bolts, or add twists to the buss cable until you achieve the desired poundage (it is not recommended to set the bow to a higher poundage than the manufactured rating). We do not recommend removing more than six twists from the shooting string as this can degrade peep sight consistency.

[Joe Archer]

Any chance that you switched string material from say a fast flight to a dacron? <----<<<

[slivoskisp]

I appreciate all the advice. I see I have alot to learn yet. I will check out all the possibilities and will let all know what the outcome is. What a great site! Thanks to all.

[slivoskisp]

Well here's the verdict if you can call it that. I took the Fire Flight PSE back to the shop and posed some of the questions from the help you all gave. First, come to find out they put a mathews string on it cause they could not order a replacement for the PSE. The serving barely covers where my knock goes, this is after he put the level on it and made an adjustment to (bringing it up a tad). We check the poundage (63) so that was fine. They did not mess with cable to put the new string on it. So bottom line it did improve the velocity a bit but not nearly a good as before. I will end up using three pins and practice, practice, practice till I am confident. I will also be looking for a range finder so, if anyone has a sugestion on a good product for decent price let me know. I don't think I need to spend a fortune for what I'll use it for.....thanks

[NorthJeff]

I guess that makes the least amount of sense to me in the first place....are you sure?

On a 285fps bow you will be about 1.25" off between 40 and 41 yards. You can shave that down to .75" between 30 and 31 yards, and a little less than a 1/2" from 20-25 yards....all with a bow shooting 285fps. With a typical set-up at 285fps, depending upon arrow weight and size, you can easily be 15 inches off from 25-40 yards...or much more with traditionally slower set-ups used for hunting.

Is that what you meant, 1 pin for all the way out to 40 yards?

[tommy-n]

I am going to go with the bowtech on this one, twisting the string can give you another 5lbs, To many variables here really, was the string the same length, how much was it twisted, who knows. Example, my son just increased his length 1 inch, by changing the modgual increased the poundage 5lbs.

[slivoskisp]

I guess that makes the least amount of sense to me in the first place....are you sure?

On a 285fps bow you will be about 1.25" off between 40 and 41 yards. You can shave that down to .75" between 30 and 31 yards, and a little less than a 1/2" from 20-25 yards....all with a bow shooting 285fps. With a typical set-up at 285fps, depending upon arrow weight and size, you can easily be 15 inches off from 25-40 yards...or much more with traditionally slower set-ups used for hunting.

Is that what you meant, 1 pin for all the way out to 40 yards?

If I understand your question correctly...I was able to use one pin to shoot acuaretly out 40 yrds (35 for sure) by placing the pin on the target either above the mark for longer shots or right on the mark at 25yrds