BOLT SHIMS
Anschutz match 54 actions
May fit other rifles.
Made by a British company with British steel.
1 Pack has 5 shims in
it.
Bolt shims and head
spacing.
On rimmed cartridges,
such as the 17 HMR, .22 LR, and 22 Mag, the headspace is measured off the
thickness of the cartridge rim. The tighter the headspace, the more consistent
the cartridge will be positioned in the chamber, and the more consistent it
will ignite the powder. Accuracy is a direct by-product of consistency and
repeatability.
According to the
Sporting Arms and Ammunition Manufacturing Institute, better known as SAAMI,
the .22 Long Rifle cartridge rim thickness is .043″-.007″. That means that any
rim that measures between .036″ and 0.43″ is within spec. That is a big
difference.
If a rifle was
chambered to the maximum .051″ headspace and you are shooting factory ammo that
comes in at the lower end of the .036″ rim thickness, you will have .015″ worth
of “space” for your cartridge to move during the firing process.
You can measure the
thickness of the ammo you are shooting with a caliper. You are also able to
just put a shim in and see how it groups. If it is worse swap the shim for a
different one and try again.
It is as simple as
removing the bolt, taking it apart. Inserting the shim or shims and trying the
next group. An instruction sheet with links to videos you can pause and move at
your own pace.
The shims are made
with DC01/CS4 mild steel.
Tightening up the
headspace using bolt shims is the most affordable way to improve the accuracy
of your rifle. This modification will tighten your groups and make your
rifle more consistent shot to shot.
(I am unable to
reference the article this information is from. I want to credit the people who
wrote this. eBay does not allow the link.)
The Anschutz rifle platform is a legendary rifle set up. If you have a 22lr. 17 HMR or a 22WMR. These shims will work.
Add these shims to your Anschutz bolt to tighten up your head space.
You can use spare shims in any other rifles they fit in.
This is a
self-install product. If you are not confident in doing this, please get a gun
smith to fit them for you.
It really is not that
hard. If you are shooting benchrest, target shooting, pest control, plinking or
just having fun. All while wanting a cheap and affective way to accurize your
rifles, this is going to be right up your ally.
They can work on any
of the Anschutz match 54 actions. That is .22 LR, 22 WMR and 17 HMR. The
internal diameter of the shims are .532 inches (13.5128mm). The external
diameter is .640 inches. (16.256mm)
15 = .0015
2 = .002
3 = .003
4 = .004
5 = .005
Headspace finding instruction sheet is included. With links to great instructional videos. A simple interwebs search will find it too.
Please feel free to drop me an email if you need any help.
If you are from
outside the UK please drop me a message and we can try and work out a way to
have them sent out to you.
CZ 457 BARREL SHIMS COMING TOO.
PLEASE CHECK OUT MY
OTHER LISTING FOR DIFFERENT RIFLES BOLT SHIMS.
REMEMBER MOST IMPORTANTLY, YOU ARE THE BIGGEST VARIABLE IN THIS.
THE MARKSMANSHIP PRINCIPELS
APPLY!
Thanks for stopping
by, I hope this has helped to get your scores up and your group size down.
PLEASE REMEMBER TO
OBSERVE ALL FIREARMS SAFETY PRECAUTIONS WHEN DEALING WITH YOU RIFLES.