Snowpeak Pinty Bullpup

[pat585]

Nobody likes a headache. I have been in contact with Troy @ BigAirPrecision.com to make 14 Rd mags for this gun. A little patience. My gun has 4 screws holding the scope rail, someone was asleep at the wheel that day. So you should either get an exchange or a refund. The big question is how does it shoot?

 

[nobody1]

The design of the Pinty bullpup is almost identical to Snowpeak P35.
But the manufacturing and quality control seem to be worse.

I think that the bullpup is a P35 clone not manufactured by Snowpeak but by some other manufacturer.

 

[nobody1]

Nobody likes a headache. I have been in contact with Troy @ BigAirPrecision.com to make 14 Rd mags for this gun. A little patience. My gun has 4 screws holding the scope rail, someone was asleep at the wheel that day. So you should either get an exchange or a refund. The big question is how does it shoot?

My Picatinny rail is held by 2 screws in the front and 1 in the rear, all 3 screws are stripped.

I mostly like the way it shoots.
The shot strings are good with a small velocity spread.
Stock the regulator was around 130/135 bar on the airgun gauge.
I increased the pressure to 160/165 bar by rotating 1/4 turn CCW the regulator adjustment screw.

Shot string 1
Pellet: CPHP 14.3 grains
Pressure: 275 bar to 160/165 bar
Velocity: 880-895 FPS
Shots: 72 shots (8 mags) from 275 bar, 6 mags from 250 bar
Regulator: 160-165 bar
Hammer adjuster: 1.3-1.4 CCW turns from max in

Shot string 2
Pellet: Norma domed 17.6 grains
Pressure: 275 bar to 160/165 bar
Velocity: 865-880 FPS
Shots: 56 shots (6 mags)
Regulator: 160-165 bar
Hammer adjuster: 0.5 CCW turns from max in

The accuracy is still to be determined.
I get point of impact changes that I think are caused by the slightly loose scope rail.

 

[flatpick65]

My rail had WAY too much “compensation” built in. With my scope elevation cranked all the way down I was still 4 MOA high at 50 yards. I flipped the rail end and to my surprise there were holes lining up for the rail in this configuration as well but now two in the back and one in the front. I gained enough rise to zero at 50 by coming up about 8 MOA in the scope. You might try flipping that rail and see if you can use the other sets of tapped holes.
My best accuracy has been with FX or JSB 16’s. Dimes at 50 yards. Very consistent velocities at 863-868 f/s for 50+ shots. Couldn’t charge to 250 as my tanks were both at about 225-230. Could probably eke out at least another 9 rounds from a full fill.
It is hard to hold steady because of its short length but I had my Grandson 3D print a bipod rail for the air tube and will try that out this weekend.

 

[nobody1]

I decided to keep the bullpup.

I know it inside out now and would be a pity to waste that knowledge
I only have the rail issue to deal with.

I have 3D printed a moderator and single shot tray too.

 

[Will74]

I stripped them threads too. Lol.
I remember sinking the bolt stems deeper as the first fix. It was funny that there was a lot of room on the top part. I just drilled a suitable hole some millimeters deeper, enough for the bolts to hold. So not a proper flat surface
After that I have been careful.
I guess the bolts could be enlarged quite easily.
Mine looks ragged after all the fix and abuse. Surprisingly it still shoots.

 

[nobody1]

I stripped them threads too. Lol.
I remember sinking the bolt stems deeper as the first fix. It was funny that there was a lot of room on the top part. I just drilled a suitable hole some millimeters deeper, enough for the bolts to hold. So not a proper flat surface
After that I have been careful.
I guess the bolts could be enlarged quite easily.
Mine looks ragged after all the fix and abuse. Surprisingly it still shoots.

The rear screw has a very shallow hole.
How would you fix that?

 

[Will74]

The rear screw has a very shallow hole.
How would you fix that?

I suppose the thread depth should be measured and find something that fits, and only if there is some useful thread left.

If not, I would go for the next thread up in size. Some machining but all in all simple and satisfying. Aluminium is very easy to work on.
If You go that route, it's about one dollar worth of bolts, two dollars a tap and a dollar for a drill bit of Your choosing to sink the bolt stem.
Let us know how it goes.