PP750 power mods on Going!

[Hawkeye51]

I was wanting to use a Crosman P-Rod barrel, (for the choke) but they are only 11.11mm thick and I'm afraid it wouldn't work.

[Hawkeye51]

Two of the options I have left without spending too much would be the Chaser barrel or the Stormrider barrel. I'm thinking the Stormrider and have it machined locally if I can. Which barrel did you get?

[Thien]

I don't have any direct experience, but I found this quote from Airgunarcheryfun in Canada. " Turn your PP750 into a carbine with this 16″ barrel! These are Diana Chaser Rifle Barrels threaded for the PP750, so they have M10x1 threads on the end."

Is this the measurement you are looking for?

I'm wanting to do the same thing you're doing, so I'm very interested in your project & results.

Thank you, I found out this quote on Airgunarcheryfun.ca but it seems that the M10x1 thread is on the front of the barrel 
I will share my experience on this project 

[Thien]

Two of the options I have left without spending too much would be the Chaser barrel or the Stormrider barrel. I'm thinking the Stormrider and have it machined locally if I can. Which barrel did you get?

I got my 280 mm blank barrel from Russia, the guy was selling all kind of barrels.

[Thane]

The lengthened barrel made some very big power on my PP750 in .22.

Shortened it to fill shroud and extend enough to put threads for LDC.  So I ended up machining it twice, easy work, fun project.

[Thien]

The lengthened barrel made some very big power on my PP750 in .22.

Shortened it to fill shroud and extend enough to put threads for LDC.  So I ended up machining it twice, easy work, fun project.

It should be easy and fun if you have the milling machine and know-how 
So what is the rear thread ?

[Thane]

I believe it was a 12mm x 1.0 pitch, you should  verify yours.

Here is what it did:
https://www.gatewaytoairguns.org/GTA/index.php?topic=170095.msg156019111#msg156019111

[Thien]

I believe it was a 12mm x 1.0 pitch, you should  verify yours.

Here is what it did:
https://www.gatewaytoairguns.org/GTA/index.php?topic=170095.msg156019111#msg156019111

Thank you Thane 
I just sent my blank barrel for machining the two threads, I will transmit this information.

[Thien]

I believe it was a 12mm x 1.0 pitch, you should  verify yours.

Here is what it did:
https://www.gatewaytoairguns.org/GTA/index.php?topic=170095.msg156019111#msg156019111

Thank you Thane 
I just sent my blank barrel for machining the two threads, I will transmit this information.

The rear thread is actually M12x1.
My new barrel is on its way 

[Thane]

...
My new barrel is on its way 

280 mm/ 11" barrel will be perfect shroud filler!

[Thien]

...
My new barrel is on its way 

280 mm/ 11" barrel will be perfect shroud filler!

My new barrel is 281 mm long 

[Thien]

The new barrel : 216 grams vs 122 grams

[Thien]

And the pistol still fits in its case 

[Thien]

Front view of the 281 mm barrel.

[Thien]

With the Donny FL Ronin silencer

[Back_Roads]

 SWEET ! Will be getting into mine this winter, adding a longer barrel and tuning for a bit more power.

[Thane]

Looking great! Now lets see some groups.

[Thien]

Looking great! Now lets see some groups.

Sure, I am building a shooting rest

[Hawkeye51]

Thien
Give us some shot strings with fps and shot counts. What reg. setting are you using? The gun looks awesome!

[Thien]

Thien
Give us some shot strings with fps and shot counts. What reg. setting are you using? The gun looks awesome!

Yes, I am making groups.
Shot strings and sound measures will come soon.