inletting homemade air rifle stock with angled stock screws
Select Gate
READ GTA FORUM RULES BEFORE POSTING
GTA Forum Help Desk
GTA Announcement Gate
Dealer Area
GRIP
AirgunWeb Airgun Videos
Airgun Repository of Knowledge
Vendors and Vendor Videos
AirGun Expo 2021
Airgun Expo 2022
Contests and Giveaways!!!
Welcome New Members
In Memoriam
GTA Contributing Members
Shot Show Videos
Hajimoto Productions
Airgun Detectives
Air Gun Gate
BB Guns and Such
"Bob and Lloyds Workshop"
American/U.S. Air Gun Gates
European/Asian Air Gun Gates
PCP/CO2/HPA Air Gun Gates "The Darkside"
Air Archery
Vintage Air Gun Gate
Air Guns And Related Accessories Review Gates
Hunting Gate
Machine Shop Talk & AG Parts Machining
3D printing and files
Buyer's, Seller's & Trader's Comments
Bargain Gate
Back Room
Target Shooting Discussion Gate
Target Match Rules
Shooting Match Gates
Field Target Gates
The Long Range Club
100 Yard Match
Discussions By States
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Home
About
Help
Old GTA
Gallery
Search
Stats
Login
Register
Advertise Here
GTA
»
All Springer/NP/PCP Air Gun Discussion General
»
Machine Shop Talk & AG Parts Machining
»
Wood Chop Shop (Working with wood)
(Moderators:
Rocker1
,
ezman604
,
uncle paulie
) »
inletting homemade air rifle stock with angled stock screws
« previous
next »
Print
Pages: [
1
]
Go Down
Share This!
Author
Topic: inletting homemade air rifle stock with angled stock screws (Read 1529 times))
JohnC
Shooter
Posts: 9
yes
Real Name: John
inletting homemade air rifle stock with angled stock screws
«
on:
October 27, 2019, 07:02:30 PM »
Homemade air rifle stocks are challenging to inlet since the stock screws often aren't parallel to each other and are located both on the sides and bottom of the stock. The airgun stock making posts by Howie in this forum are excellent, but I think this post may be helpful for dealing with angled stock screws. I hope that these tips for inletting a DIY air rifle stock are helpful and interesting.
Here's what I did for my Walther LGU. I first milled a 1.370" diameter channel using a 1.25" half-round bit. By making multiple cuts that are offset from each other, the undersized bit can produce a fairly smooth and round 1.370" diameter channel. I then transferred the stock holes from the original stock into a 1.375" hardwood dowel that was securely taped into the receiver channel of the original factory stock. The dowel is almost the perfect size, with a diameter of 1.350"-1.360" (not perfectly round), so I wrapped it with some packing tape to get the dowel to fit tightly into the original stock. I turned the stock upside down and drilled the two rear screw holes through the stock's original holes and then through the dowel using a drill press, which helped keep the holes vertical. This doesn't work for the forearm holes since the stock holes are not very deep (yellow arrow in Fig. 1e) and although they can be used to locate the position of the front holes they aren't long enough to guide the drill bit at the correct angle into the dowel. So I machined a brass drill guide (Fig. 1b, below) that fits tightly in the forearm screw counterbore and that seats against the bottom of the screw hole (where the star washer would be). The brass bushing really helped make accurate holes in the dowel, and if there's one thing that may be new/interesting about this post, this is probably it! I then used a hand drill to make the forearm holes in the dowel (see Fig. 1a). The position and angle of the forearm holes result in exit holes in the dowel that are very close to the top edges of the stock, so I ended up nicking the top left edge of the original stock (red arrow in Fig. 1e shows the area that I later repaired). Be careful here! I then removed the hardwood dowel from the original stock and taped it into the receiver channel of my new stock. I used a hand drill to transfer these holes into the new stock (Fig. 1c). Figure 1d shows the inletting transfer dowel and the new stock after the inletting holes have been drilled. The alignment and positioning of the new holes was excellent. The hardest part was cutting the counterbore on the forearm screw holes. For this, I shimmed and secured the new stock to my drill press table so that the original drill bit was well aligned with the stock hole, and then replaced the bit with a larger Forstner bit to cut the counterbore for the screw head. It was challenging to make sure the stock doesn't move in his process. A reverse counterbore bit would have made this much easier. Although this post is a lot longer than I hoped, I actually left a lot of details out, so if you have any questions or need more info, please let me know.
The final result is shown in Fig. 2.
Now I'm thinking if it would be worth gluing aluminum pillars into these screw holes. If you have any advice/experience with pillar bedding a springer please let me know.
Thanks,
John
Logged
USA, New York, Amherst
glassman98
GTA Moderator
Expert
Posts: 1965
Real Name: Craig
Re: inletting homemade air rifle stock with angled stock screws
«
Reply #1 on:
October 29, 2019, 01:03:30 PM »
John, Very nice work. The write up of Howie is very good. I used it when I started making my own stocks. That is a neat trick on the hole location. Keep up the good work. Craig
Logged
Apple Valley, Ca
Diana Bandit pistol ( For Sale)
AA FTP 900 ( For Sale)
AA S510 Extra .22 ( For Sale)
Marauder .25 ( For Sale)
FWB 124 Sport ( For Sale)
FWB 300S ( For Sale)
RBQChicken
Expert
Posts: 1648
Real Name: Randy
Re: inletting homemade air rifle stock with angled stock screws
«
Reply #2 on:
October 29, 2019, 06:40:55 PM »
VERY clever idea! I am so often amazed at how people on this forum figure out how to get tricky things done, and done to perfection. Even though I understand now how you did it, I still wouldn't be able to pull that off myself. Well done!
Logged
U.P. of MI
The first time I hit it, I missed. The second time I hit it in the same place.
Print
Pages: [
1
]
Go Up
« previous
next »
GTA
»
All Springer/NP/PCP Air Gun Discussion General
»
Machine Shop Talk & AG Parts Machining
»
Wood Chop Shop (Working with wood)
(Moderators:
Rocker1
,
ezman604
,
uncle paulie
) »
inletting homemade air rifle stock with angled stock screws