Saturday, April 9, 2016
Monday, April 4, 2016
Hey, remember me? Yeah, I used to blog about air guns before I ran out of space and money, as well as all the air guns available in the valley... Well my buddy Kent came across this Model 130 in a barn and it needed resealing so here I am again. I previously covered the earlier version of the 130 so it will be neat to see the differences.
In good shape but it appears some shade-tree mechanic has been at the innards…
That does not bode well…
That hole should be for adjusting hammer spring tension, but only on guns with a knock-open valve, on this model I suspect it’s what they had on hand?
A lot of scratched around the roll pin…
The bolt screw hole had a burr on it that prevented it from coming out until I deburred it.
It looks like they tried to use a tire patch to seal the transfer port. Not the best idea.
This is going to be a pain. The other 130 had an o-ring instead of a pump cup. I’ll have to try and press the brass ring out and modify a 1377 pump cup. Or I’ll machine a new one…
Roll pins only come out one way. Well they come out both ways but one does less damage.
A nice oval piece of spring keeps the trigger from slopping around.
The mechanic inserted a flat piece of rubber between the hammer and the blow off valve because he had no idea how the gun worked.
Notice the dents on the valve spacer.
Now to clean and reseal, hopefully soon.
Sunday, February 28, 2016
This doesn't break any new ground either, but its just such a nice little gun, I
There's still a plan kicking around to make a new trigger. Mentioned before that the trigger really needs another 1/2" or so of set-back. Guess that'll also entail a new trigger guard.
Still on a sling kick, the slender 22mm (7/8") sling mounts from the HW35E finally found the right home. They look exactly right on the old girl.
Even the front barrel band was a good fit.
Finding the right 7/8" sling was the hardest part. This isn't exactly the place for a two point black nylon Magpul. A trip to Dick's Gun Room did the trick. They had a nice selection of leather slings taken off trade-in rifles.
Digging through the options yielded an old 7/8" George Lawrence Co. #5 military sling. A few minutes with some Sno-Seal leather conditioner, pure beeswax, and a heat gun on low had it looking like a million bucks.
Thanks for checking in.
Wednesday, February 24, 2016
Saturday, September 19, 2015
Started with a chunk of 6061 aluminum.
At 0.625" thick it was too wide to fit the inletting in the grip.
I milled down to ( I think) 0.550".
It was the right size when it just fit into the wood.
Winging it with the layout. Nothing new there. There's a bit of stock to hog out.
To get the stock out quickly, I drilled a 1" diameter hole.
Followed by a 7/8" hole. This removed about 80% of the material.
Scratched some lines to connect the holes and swapped milling vises to one with a different base. As the guard will have a tapered slot, I needed the ability to swivel the vise.
Milled out the web between the holes.
Had some concerns about the guard collapsing and binding the milling cutter as the last of the web was removed. Went easy on the vise clamping pressure and took lighter cuts to compensate. Note the metal left at the extreme right for support. It was later removed with a hacksaw.
Milled a slot in the top of the guard for the trigger blade. The slot has to be both centered and have the correct clearances to fit around the trigger block. The sides of this slot block in the trigger pivot pins to prevent them from walking out.
And a relief slot for the sear.
Milled some angles into the guard to lose excess metal and make it marginally less "blocky".
Hand filed the curve at the top to fit into the front of the inletting.
Used a transfer punch through this hole to locate the 5mm mounting screw location.
Drilled for the aforementioned screw. Not shown: Turned the guard over, lined up the hole again and drilled a counterbore for the head of a M5 SHCS. (that's a Socket Head Cap Screw)
More shaping. Less blocky.
About done. Here's the counterbore. Started to deburr the edges. Needs some sanding and spit and polish.
Obviously, it's not a full wrap guard.
A bit chunky, but it'll work. Besides, all the metal in the front is hollow for the mounting screw
Some milling marks.
You can see the trigger housing nested in the oval slot.
After more sanding, blending, edge relief then a light bead blast.
Gave it a shot of black epoxy paint. It's a pretty close cosmetic match to the anodized breech.
Much, much more comfortable now to shoot. Instead of being annoyed by the guard, I can focus on the dot alignment. I see a few areas for improvement (which were ignored while rushing to get it done) that I may revisit--if I can talk myself into stripping the finish.
Thanks for checking in. More soon.