1377 Chrony results

[mcc1961]

I shot my 1377 over the chrony because I was worried about consistency. I shot 5 times at 8 pumps . Then I shot at 10,15 and 20 pumps.Really satisfied with the results.
8 Pumps
1.634fps
2.634.3fps
3.639.5fps
4.635fps
5.641.2fps
10 Pumps-676fps
15 Pumps-729.1fps
20 Pumps-751.1fps

[Powder burner]

Is it stock?

[mcc1961]

No, I have it modded.It has a 24" barrel, a Alchemy valve, boss transfer port,3D barrel band, disco hammer spring, solid pin , steel breech and 1399 stock.I was hoping to get to the 750 mark.

[Powder burner]

 Could you tell me more about the Boss transfer port and 3D barrel band?

[David Powell]

What pellet were you shooting? weight?

[mcc1961]

I got those parts at Alchemy Air werks or Davio, the transfer port is around 25% better flow and the 3D printed barrel band doesn't move even a bit , it is as good as a metal band and doesn't have the high cost.

[mcc1961]

7 grain RWS Diabolo basic.

[fenixt]

You have a picture of the printed barrel band? I seen some on ebay that looked pretty crummy. Like it was cut with a hacksaw. Wouldn't put it on my gun. Don't know if its the same one you got. Ended up just getting one from Chavka. It was higher, but worth it imo.

[Powder burner]

You have a picture of the printed barrel band? I seen some on ebay that looked pretty crummy. Like it was cut with a hacksaw. Wouldn't put it on my gun. Don't know if its the same one you got. Ended up just getting one from Chavka. It was higher, but worth it imo.

Link?

[Bentong]

If you add n ft you'll see 700's with cpl 7.9 with 10 pumps and 800+ with 20 pumps

[mcc1961]

I have Davios High Performance PUMP RP VALVE , which has been modded.I want to get the 2 stage trigger and an extended bolt and I will be done with it.