GTA

All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: miksatx on October 01, 2024, 10:01:06 PM

Title: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 01, 2024, 10:01:06 PM
Shots Alots regged at 1100psi 15 cu in 4500 psi cf bottle. I'm down 3050 psi on my bottle now.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 03, 2024, 11:13:57 AM
Now at 2900psi.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 03, 2024, 12:23:31 PM
What's the reg set at?
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 03, 2024, 01:11:53 PM
Quote from: splitbeing on October 03, 2024, 12:23:31 PM
What's the reg set at?
1100psi.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 03, 2024, 03:30:13 PM
Alot more shots to go!

Any guess how high the ES will be by the end?
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 03, 2024, 04:06:39 PM
Quote from: splitbeing on October 03, 2024, 03:30:13 PM
Alot more shots to go!

Any guess how high the ES will be by the end?
Lol no idea! Seems to be doing pretty good for a throw together parts gun. Am down to 2000psi
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 03, 2024, 05:59:24 PM
[chuckling]

Five hundo and countin'!
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 03, 2024, 09:22:15 PM
And counting!
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: Bentong on October 03, 2024, 10:34:40 PM
😁😁 you need a lot of pellets before you pump it again
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 04, 2024, 10:58:29 AM
Quote from: Bentong on October 03, 2024, 10:34:40 PM
😁😁 you need a lot of pellets before you pump it again
Bought 3 tins of crosman 7.9 HP for this shoot out lol.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: rsterne on October 04, 2024, 12:15:34 PM
The gun starts working properly at about 2900 psi tank pressure.... Above that your velocity is increasing.... Check out the grey line on this chart.... The bump in your velocity is however occurring below 2900 psi tank pressure....

(https://hosting.photobucket.com/albums/oo221/rsterne/PCP%20Internal%20Ballistics/.highres/Regulator%20Tunes%20Revised_zpstv4nytay.jpg) (https://hosting.photobucket.com/albums/oo221/rsterne/PCP%20Internal%20Ballistics/.highres/Regulator%20Tunes%20Revised_zpstv4nytay.jpg)

You should either increase the hammer strike (which will increase the velocity and decrease shot count).... or decrease the setpoint pressure (which will decease power and increase shots, which doesn't seem desirable in your case).... Aim for the yellow or orange lines....

Bob
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 04, 2024, 02:14:45 PM
Quote from: rsterne on October 04, 2024, 12:15:34 PM
The gun starts working properly at about 2900 psi tank pressure.... Above that your velocity is increasing.... Check out the grey line on this chart.... The bump in your velocity is however occurring below 2900 psi tank pressure....

(https://hosting.photobucket.com/albums/oo221/rsterne/PCP%20Internal%20Ballistics/.highres/Regulator%20Tunes%20Revised_zpstv4nytay.jpg) (https://hosting.photobucket.com/albums/oo221/rsterne/PCP%20Internal%20Ballistics/.highres/Regulator%20Tunes%20Revised_zpstv4nytay.jpg)

You should either increase the hammer strike (which will increase the velocity and decrease shot count).... or decrease the setpoint pressure (which will decease power and increase shots, which doesn't seem desirable in your case).... Aim for the yellow or orange lines....

Bob
Hi Bob
My adjustable hammer spring adjusting not quite that adjustable have to remove the stock and a few other things. So I won't be doing any adjusting.
I thought I might get 1000@ 6fpe.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 04, 2024, 11:23:36 PM
What's the pressure at now?
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 05, 2024, 09:03:33 AM
Quote from: splitbeing on October 04, 2024, 11:23:36 PM
What's the pressure at now?
Just about finished.
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 05, 2024, 10:14:10 AM
It's  done lol!
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 05, 2024, 10:55:49 AM
Aw man!!... I was rootin' for a thousand!! [chuckling]
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 05, 2024, 12:08:21 PM
Quote from: splitbeing on October 05, 2024, 10:55:49 AM
Aw man!!... I was rootin' for a thousand!! [chuckling]
Me too dang it lol!
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: splitbeing on October 05, 2024, 12:29:45 PM
Can the reg setpoint be lowered?  It was soooo close!!!
Title: Re: Sir Shots Alots Chaser hpa conversion
Post by: miksatx on October 05, 2024, 02:57:27 PM
Quote from: splitbeing on October 05, 2024, 12:29:45 PM
Can the reg setpoint be lowered?  It was soooo close!!!
It a big spring with a couple shims if I remember correctly lol. Not sure think I might have a 850psi first strike regulator. Come to think of it that reg is a 3000 Max fill pressure.