Glock 22 recoil spring
David
range.
What is the stock spring weight for this model?
I would like to replace it with a spring with stock weight plus 2lbs.
This might stop peening on the slide rails also.
I have seen springs from 13 to over 20lbs for sale.
I was also going to install it on a captive stainless steel guide rod.
Thanks Dave
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Gandalf
> ...
Wolff's has a number of different recoil springs for your Glock
www.gunsprings.com
You will need to replace the guide rod; you can get a stainless steel
one to replace the stock plastic one at
www.glockmeister.com
www.glockworks.com
Glockmeister and Glockworks have more aftermarket accessories than you
can imagine for the plain jane Glock. I done business with them, as well
as Wolff's, and all are tops in customer service.
Clark Magnuson
Recoil Spring Selection Tips (from Wilson Combat catalog)
By Bill Wilson
As a rule of thumb, you should use the heaviest recoil spring possible,
which does not interfere with the pistol functioning.
The spring tension requirement is affected by many factors, including
the ammunition used, grip pressure, compensators, slide to frame
friction, pistol type etc. The following procedure will help you
determine what is the proper recoil spring for your gun.
1. First, try the recommended standard spring for your load/pistol
combination.
2. Watch for extraction related jams and failure of the slide to lock
back. This is an indication of a very heavy spring. Use a lighter one.
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http://www.gunsprings.com/1ndex.html
How heavy should my recoil spring be?
What weight recoil spring should I use with a particular load?
These are two very hard questions to answer in exact terms and in most
cases an exact answer is not possible. There are many factors which
influence the correct weight recoil spring to use. These factors
include the particular ammunition brand and load, individual pistol
characteristics, individual shooting styles and your individual,
subjective feeling of how the gun shoots and should feel. In general
terms, the heaviest recoil spring that will allow the pistol to function
reliably is the best choice - tempered by the above factors. If your
casings are hitting the ground in the 3 to 6 foot range, then the recoil
spring is approximately correct. If you are ejecting beyond the 6-8
foot range, then a heavier recoil spring is generally required. If your
casings are ejecting less than 3 feet a lighter recoil spring may be
needed to assure proper functioning. Taking these factors into
consideration, it then comes down to how the gun feels and performs when
shooting - in your judgment. Using too light a recoil spring can result
in damage to the pistol and possible injury to you.
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My own calculation on "How far do cases fly?":
1) For a semi-automatic case fired 5 feet form the floor, the time to
reach the floor is
t= square root ((2)distance / acceleration )= root (5'/32'/sec/sec)= .54
seconds
2) In a Colt .45 the ejector contacts the case when the slide is back
1.3". The farthest the slide can travel is 1.8" where it hits a stop. If
the spring is perfectly sized for the gun and the round, then the slide
will just run out of energy at the stop. Assume Vslide = 0 at 1.8".
3) Energy Slide at 1.3 inches = (force) (distance)= (16lb
spring)(1.8-1.3=.5")=.66 foot pounds of kinetic energy left in slide
when it hits the case
4) Energy is also = 1/2 mass velocity squared = .5 (mass of slide=
weight
of slide/ grav accel=12 oz/32 ft/sec/sec)(V squared)
5) Combining equations 3) and 4): Vslide at 1.3" = square
root(E/(.5mass)) = root(.66 ft lb/((.5)(.023 lb sec sec /ft)) = 7.6
feet/sec
6)Center of gravity [this should be moment of inertia, but that would be
work] is .25" from extractor claw and ejector hits the
case at .35" from the extractor claw.
Velocity of case = (.25"/.35") velocity of slide at 1.3" = (.25/.35)7.6
feet/sec = 5.4 feet per sec = 3.6 miles per hour
7) Combining 1) and 6): Distance case travels=
(Velocity)(time)=(5.4ft/sec)(.54 sec)=2.9 feet horizontally from the
gun
And Wolff FAQ wants your empties to land from 3 to 6 feet. They must
want the slide to barely hit the stop.
http://www.gunsprings.com/1ndex.html
Clark
Ron Seiden
news:9mtn3e$8ri$1...@xring.cs.umd.edu...
I've done a lot of spring substitutions with my G22. First off, Wolff sells
a kit with every weight recoil spring they have for that gun. You will need
either their non-captive guide rod to put them on, or Glockmeister sells a
do-it-yourself captive guide rod. (Assembling the Glock with a non-captive
heavy spring is a lesson in not having enough hands, and looking for the
spring across the room under furniture.) Wolff says to start with their
heaviest spring, and see how it functions. Their method for judging is by
how far the brass gets ejected (which is where your problem started). When
the brass is getting tossed as far as you want, that's the weight spring to
stay with. At one point I had my .40 brass dropping about 3' to my right,
but that heavy a recoil spring made limp-wristing easier to do accidentally.
I finally settled on one (or 2? my mind goes...) steps down from their
heaviest. I also tried one of those cushioned guide rods, but that really
messed up the gun's reliability (in combo with the heavier springs). When I
got tired of fighting with the reassembly hassle, I got the captive rod kit
and permanently installed the weight spring I settled on. (With the Wolff
kit you can switch spring weights until you like how the gun functions.)
One thing to remember: with the slide moving back into battery with more
authority from the heavier spring, you will want the Wolff extra power
magazine springs also, to make sure the next round is pushed up into
position fast enough. (And, yes, the recoil feels softer from it getting
soaked up better by the heavier spring.)
VScala8503
back. I didn't care how far the brass flew but did care about frame battering.
Shooting in the cool Maine spring and fall without gloves the you could really
feel it with the stock spring. I tested this on other shooters as well. I use
a 20lb (19lb works well too) Wolff recoil spring and extra power Wolff magazine
springs, works fine but the brass still goes 6'-8' depending on load. Also FWIW
my wife has a hard time loading the G22 with a 20lb spring.
VS