Hi all,

Here's one for y'all to have a rant about.
Some people say having scratches, scrapes and/or general abrasions on a bolt
(talking about spyders & clones here) is BAD and that it "degrades
performance".
Some people say it doesn't matter or make a difference at all, and indeed
that it's natural and doesn't effect performance.

What do you think? My thinking is that abrasions, scratches etc *might*
increase friction thereby decreasing efficiency... but I'm not sure.

Next issue is, considering my stock bolt is scratched (abrased?!) up the
wazoo, do you think my chamber will be to? I can't really tell, it doesn't
seem to be. If it is, and I get a delrin bolt, will these
scratches/abrasions cause the delrin bolt to get scratched (abrased!?) ?

So you can see where this is leading...
What I'm thinking is, if I get a delrin bolt,
a) will it be any "better"? To *me* this means improving gas efficiency
(which is quite important for me with a 47/3000 tank), improving fps (which
I guess is a function of gas efficiency) or improving shot-to-shot
consistency.
b) will any existing "damage" (scratches, abrasions) on the inside of my
chamber cause a delrin bolt to become damaged?

Cheers for any help,
Daniel

On most spyders and spyder clones have enough tollerance in the chamber
that the scratches really aren't a problem. More than likely you are
not going to get nearly as bad scratches in the chamber as on the bolt
since the chamber is anoed which adds a little bit of hardening to the
metal. You WILL get some scratching inside the chamber, but not nearly
to the extent of the bolt since the bolt is much softer material. They
probably do this on purpose so that the bolt takes the brunt of the
abrasion as opposed to the body itself.

I have no experience with delrin bolts, but I DO have experience with
self lubricating plastics since we used them extensively where I worked
back in PA. You can have much tighter tollerances with delrin because
it is self lubricating and therefore you can get away without any
O-rings (not that the 0-rings ont he stoick spyder bolt did ANYTHING,
but yeah) and the bolt should still slide freely through the chamber
when not attached to the hammer.

Any imperfections in the chamber are going to attack the delrin, but if
I remember correctly delrin is also pseudo self-healing so the effect of
this will be quite minimal.


Of course, whether the delrin bolt will be better for efficiency? I have
NO clue, like I said I have never used one before and I dont recall ever
reading about them either, I dunno I guess I just missed anything
written haha. Of course it doesn't hurt being flat broke and unable to
buy the mags

Daniel Stocker wrote:
> Hi all,
>
> Here's one for y'all to have a rant about.
> Some people say having scratches, scrapes and/or general abrasions on a bolt
> (talking about spyders & clones here) is BAD and that it "degrades
> performance".
> Some people say it doesn't matter or make a difference at all, and indeed
> that it's natural and doesn't effect performance.
>
> What do you think? My thinking is that abrasions, scratches etc *might*
> increase friction thereby decreasing efficiency... but I'm not sure.
>
> Next issue is, considering my stock bolt is scratched (abrased?!) up the
> wazoo, do you think my chamber will be to? I can't really tell, it doesn't
> seem to be. If it is, and I get a delrin bolt, will these
> scratches/abrasions cause the delrin bolt to get scratched (abrased!?) ?
>
> So you can see where this is leading...
> What I'm thinking is, if I get a delrin bolt,
> a) will it be any "better"? To *me* this means improving gas efficiency
> (which is quite important for me with a 47/3000 tank), improving fps (which
> I guess is a function of gas efficiency) or improving shot-to-shot
> consistency.
> b) will any existing "damage" (scratches, abrasions) on the inside of my
> chamber cause a delrin bolt to become damaged?
>
> Cheers for any help,
> Daniel
>
>