7 replies to this topic

[Llamaman]

Well, it's winter. Time to start taking things apart and tweak.. or at least just see how things work.
I was noticing how much downward pressure the string has on the rail of my SZ380. It looks like I could raise both limbs to the top of the limb bracket and gain maybe .015" to .020" which would lesson the pressure on the center serving a bit.
I'm assuming that downward pressure is designed in for some reason but am wondering if a little less might help the center serving wear.
Any input?

[Highlander]

Llamaman, on 23 January 2012 - 10:11 AM, said:

I'm assuming that downward pressure is designed in for some reason but am wondering if a little less might help the center serving wear.
Any input?

My Ghost has a slight downward pressure as well. I assume it is to keep the string in proper alignment with the nock of the arrow? I would also assume that the manufacturer has taken this into consideration in the design. Personally I would not play with this unless some here are very familiar with this aspect of the xbow.

Edited by HighlandHunter, 23 January 2012 - 10:51 AM.

[wapster]

mine is the same way Lama, I noticed it the first time I put the cocking rope on the string. It concerned me some but after several hundreds of shots,I am still on the original string. Its starting to get a small frey  right where the claws hold and release the serving.  I have a new string on hand but haven't seen the need to install it as of yet. How many lbs pressure would you say it takes you to pick the string up just enough that it isn't touching the rail ?

[Moon]

Don't....... If you look at your 380 from the side you will see the limbs are not vertically parallel to the barrel. Messing around with the geometry of that setup could cost you. Besides, the center serving life on the 380, and especially the 350, has been better than most every other compound crossbow I've shot or hunted with. I think serving life results largely from what is put on the barrel deck and serving. I firmly believe that putting string waxes on the serving and greases/oils on the decks shortens serving life and increases center serving separation. I put nothing on the center serving and use only Jigaloo on the deck. It does not attract dust and grit which can eat center servings. It can be found at most Advance Auto stores. Spray it on a paper towel and wipe it on the deck. It dries residue free. Do NOT use it on plastics or non metal crossbow barrel decks.

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Edited by Moon, 23 January 2012 - 11:19 AM.

[Llamaman]

This is my first crossbow and I didn't realize how quickly the center serving wears. I have used only Jigaloo on the rail and no wax on the center serving but it's in need of replacing after maybe 300 shots. Sounds like that's normal huh?
I really enjoy just shooting it so I better learn how to reserve the string.

[Moon]

I re served my 380's center serving after about 350 shots. The 350 is up over 500 shots with the original factory center serving and still going:-)

[mjgonehunting]

I actually heard the so called Tech at Cabelas in Hartford,Ct tell a customer with a Barnett BuckCommander that it was normal for his string to break after 60 shots!
I knew the older bows ate strings,but I would expect to see alot longer life than 60 shots!

[Moon]

I'm not surprised at anything I hear from folks behind the counters of some of the big box stores, or from some vertical bow shops.