Author Topic: Re: SSP Pistol (Read 105 times))

JPSAXNC · « **on:** April 28, 2025, 10:36:11 AM »

I had made an SSP pistol, I had made three different valves for it. The difference in the valves was the size of the porting, valve throat and transfer port. The volume of air in an SSP pistol is so miniscule that I thought the differences in porting size would show up over the crony. But no difference in velocity. One valve had a transfer port of .1, another a transfer port of .125, do think that just wasn't enough of a difference to show a change in velocity?

AmBraCol · « **Reply #1 on:** April 29, 2025, 10:28:29 AM »

That's an interesting question. I hope someone with a good grasp of the issue can chime in on it.

What kind of velocity are you getting? What about Standard deviation?

JPSAXNC · « **Reply #2 on:** April 29, 2025, 04:11:25 PM »

The velocity is about 430 fps. + or - 2-3 fps. With old boxed 7.9 premiers.

Thank you to our advertisers!

Re: SSP Pistol