| Kinks and Tricks |
GLASS BEDDING RIFLESby Dingus(Dingus wrote this in a forum and
kept adding to it. He was like me, it took him several
sittings to think of everything. He was one of my dearest
internet friends and I miss him dearly. Ole Buddy I am putting
this here so we can all remember you. Swamprat)
Tools needed;
tools to take gun out of the stock
drimmel tool with a router bit and a ball grinder.( not necessary, but
nicer and faster)
barrel channeling tool
small wood gouge( sharp)
small wood chisel (sharp)
sand paper
clean rags
Material needed
Bedding material I use accura-gel
release agent some comes with kit, but the spray from brownell is
best
masking tape
elmers or all porporse glue
thin foam rubber the pad on top of the nosler bullets
2- machine screws 1 1/4" or as needed, with heads cut off
One wide rubber band
The start;
Remove the action from the stock, and if your rifle has a recoil lug that
is pinched between the barrel and action, remmy and sav for sure, make sure that
the lug is dead square with the action or you may not be able to remove the
rofle from the stock when glassed in. To square this up is a job for a smith
for most of us. Make sure the rifle isn't setting to high out of the
stock. Remove some of the material from around the recoil lug area. Cut a couple
of small vertical slots in the rear face of the recoil area. Cut some more depth
to the recoil lug recess. With a wooden stock, use the router bit and drimmel,
and cut a groove across the area behind the recoil lug and the front mounting
screw. Do the same between the trigger cut and mag cut. What we are doing here,
is we are gonna beef this area up by laying those 2 machine screws crosswise the
stock to keep the stock from splitting. We will epoxy them in when we do the
bedding.
Pack the screw holes in the stock and the action with pieces of that foam
rubber so bedding don't git into the holes. Place a thin piece of plastic or
match book cover in the barrel gtoove at the front of the fore arm and a small
piece at the rear mount screw. Set the action back in the stock and make sure
that the barrel clears the stock all the way to the recoil lug. You should be
able, with no resisance, slide a piece of paper from the cardboard at the front
to the recoil lug. Sand the clearance you need. Using more of the foam rubber,
cut some thin strips and glue them in to dam up the bedding material to the area
you want it. I glue in a dam where the chamber area starts its taper and another
one at the very front edge of the of where the magazine fits.
I don't usually do the rear tang at the same time, so we will leave it to
set on that little piece of cardboard for now. Using masking tape, tape along
the top edge of the stock where you are bedding. Tape well beyond where the
bedding is.Lay a few layers of tape on the bottom of the recoil lug so that when
you are finished, you can peel it off and have clearance in the bottom. Spray
the release on the action, getting into all the little areas that the bedding
material can get. Hard to use to much spray. Spray the stock around the area.
Mix your epoxy, a little more than you think you need. Put the 2 screws into
the slots you cut and put in your mix. Install action and with hand pressure,
push the rifle to the bottom of the stock. You should have epoxy ooze up out
of the stock around the area you bedded. Put your rubber band around the front
of the obj of your scope and bring it all the way around and hook the other end
over the obj lens. This will hold your rifle and stock togather while it sets
up. You may want to trim off the epoxy ooze before it gits hard. I take
them apart after 5-6 hours, respray release and put it back togather. When you
do the tang, open up the front mount screw hole, use the same cardboard in the
fore arm as before, bed the tang, and snug up the action with the front mount
screw. When everything is cured, drill out the action screw holes in the stock
a little over size so the screws don't bind. Assemble and shoot.
The not using tape was strictly an economic move on my part. lol Just what
ever you use under the front of the barrel should be under the tang, if you bed
in two steps like I do. I do this so that I can keep the rifle level in the
stock and no bind on the action, which is also the reason I use rubber bands to
hold the rifle in place while cureing. Shimming the rifle up eleminates a lot
of rasping, and its neater for a wood worker like me. By all means feel free to
offer opinions or other methods.
One thing I forgot to say, was to relieve the rear of the tang after
bedding the rear of the action. This is especially important on a hard kicking
rifle in a wood stock. Not doing so, could cause the stock to split in that
area.
I have heard P/B mention a couple times about the recoil lug having
clearance in front , sides and bottom. I understand the possibility of heat
jacking the action up if the recoil lug is bottomed out, but why are the other
clearances needed?
There are some rifles that don't shoot their best with a full floated
barrel. Some times a little fore-end pressure is needed. While at the range,
the amount of pressure can be determined by shooting groups and adding shims
between the barrel and fore-arm. until the groups get smaller. Those little
plastic calanders for wallets make good shims. Once the rifle comes in, ya can
take it out of the stock and put some glass bedding in the area and reassemble
with the shim-pac tha it shot the best with.
To prevent the lug from shaving material, I bevel the bottom and side edges
of the lug with a file. That layer of tape on the bottom of the recoil lug may
not be enough clearance. I bought a router bit for my drimmel that also cuts on
the bottom and remove a good deal of material from the bottom of the recoil lug
area of the stock. Like P/B says, on a hunting rifle, debris can gather under
the lug and cause accuracy problems. I just took apart a 270 of mine that usta
to drive nails, but now definatly don't. I hope that was what it was.
I leave the recoil lug tight in the cut-out except fer the bottom. I don't
want my rifle to be able to shift at all in the stock, and not have to rely on
the action screws being super tight to hold every thing in place, though it
would seem that all the fources are in just the rearard direction. I see where
it could be possible for the recoil to compress the material behind the recoil
lug and possibly shift the action in a forward direction as it de-compresses. If
the action is pillar bedded, the screw tightness isn't an issue, Ya can tighten
them down hard. With wood, I don't want to do that, because of the wood crushing
and the humidity altering the tention of the screws.I don't tighten any of my
screws super tight, just well snugged down. I guess that I could pillar bed all
my stocks, but that , in some cases come under "fixing stuff that an't broke." I
believe that the harder the rifle recoils, the more critical everything is. I
have always had an easier time making small rifles shoot good, than the big
ones.
dingus |