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All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Topic started by: kzz1kaw on February 14, 2018, 10:04:40 AM

Title: P15 25 cal owners question
Post by: kzz1kaw on February 14, 2018, 10:04:40 AM
What velocities and shot count are you getting with 25.39 pellets?
Title: Re: P15 25 cal owners question
Post by: kzz1kaw on February 15, 2018, 04:31:36 AM
Guess I'm the only one that owns a p15 in 25 cal😳
Title: Re: P15 25 cal owners question
Post by: miksatx on February 15, 2018, 07:07:41 AM
My P15 .25 Mile high shot string.
Created: 12-11-2017 09:58:27 PM
Description: P15 shot string
Notes 1: 20 bar fill to 10 bar
Notes 2: 5 mags would be best.
Distance to Chrono (FT): 1.00
Ballistic Coefficient: 1.000
Bullet Weight (gr): 25.390
Altitude (FT): 5280.0
Temp: 50 °F
BP: 24.81 inHG
Shots
# FPS FT-LBS PF
48 769 33.35 19.52
47 782 34.48 19.85
46 786 34.84 19.96
45 791 35.28 20.08
44 795 35.64 20.19
43 803 36.36 20.39
42 806 36.63 20.46
41 813 37.27 20.64
40 815 37.45 20.69
39 820 37.91 20.82
38 820 37.91 20.82
37 824 38.29 20.92
36 823 38.19 20.90
35 819 37.82 20.79
34 820 37.91 20.82
33 817 37.64 20.74
32 818 37.73 20.77
31 822 38.10 20.87
30 822 38.10 20.87
29 819 37.82 20.79
28 821 38.01 20.85
27 821 38.01 20.85
26 812 37.18 20.62
25 822 38.10 20.87
24 822 38.10 20.87
23 822 38.10 20.87
22 819 37.82 20.79
21 821 38.01 20.85
20 823 38.19 20.90
19 824 38.29 20.92
18 811 37.09 20.59
17 823 38.19 20.90
16 821 38.01 20.85
15 823 38.19 20.90
14 820 37.91 20.82
13 820 37.91 20.82
12 823 38.19 20.90
11 820 37.91 20.82
10 821 38.01 20.85
9 822 38.10 20.87
8 820 37.91 20.82
7 822 38.10 20.87
6 825 38.38 20.95
5 823 38.19 20.90
4 822 38.10 20.87
3 825 38.38 20.95
2 826 38.47 20.97
1 795 35.64 20.19
Average: 815.69
StdDev: 12.49
Min: 769
Max: 826
Spread: 57
True MV: 815.78
Shots/sec: 0.08
Group Size (IN): 0.00
Title: Re: P15 25 cal owners question
Post by: kzz1kaw on February 15, 2018, 10:28:16 AM
Thank you😎
Title: Re: P15 25 cal owners question
Post by: miksatx on February 15, 2018, 12:46:24 PM
You're welcome. are you shooting the stock barrel?
Title: Re: P15 25 cal owners question
Post by: kzz1kaw on February 15, 2018, 09:44:55 PM
Quote from: miksatx on February 15, 2018, 12:46:24 PM
You're welcome. are you shooting the stock barrel?
Yes. Accuracy isn't that great. Have a green mountain barrel and a huma reg that I'm going to install. Goinuuuuug to have to send out the action and barrel to someone to replace the stock barrel. You have the stock barrel and reg?
Title: Re: P15 25 cal owners question
Post by: miksatx on February 15, 2018, 10:45:28 PM
i've got the green mountian barrel an huma already fitted.
Title: Re: P15 25 cal owners question
Post by: jarmstrong on February 15, 2018, 11:14:31 PM
Quote from: miksatx on February 15, 2018, 10:45:28 PM
i've got the green mountian barrel an huma already fitted.


I knew that ;D and don't forget the Weihrauch moderator that you added also 8)
Title: Re: P15 25 cal owners question
Post by: kzz1kaw on February 16, 2018, 02:28:05 AM
How is the accuracy out to 50? What is the reg set to? From what I see on the shot string 40 shots. Have you tried tuning for say 850 fps?
Title: Re: P15 25 cal owners question
Post by: miksatx on February 16, 2018, 08:25:00 AM
Hi Jack thanks for reminding me lol.
Hi Ken 855 is top end on this gun, reg is set at 130b. I don't have the room to shoot 50yards. But I'd say it on par with a marauder shooting @ 50. I sent it off for a buddy to hunt with. He said these Bunnies were taken from 10 to 75 yards, https://m.imgur.com/gallery/UH6Bu.
Title: Re: P15 25 cal owners question
Post by: badgerfarm on February 16, 2018, 10:30:22 AM
Who is a good supplier for the Huma reg for the P15?  I'm going to fit one to mine and do a little tuning.  I've heard that the factory regs weren't up to par and my stock barrel is quite accurate out to fifty yards with 25 gr JSBs .  Just in case where could a guy turn up a GM barrel in the event that I wanted to stretch it out to 100 yds?  I've got a lathe and can do the mods with no problem.
Title: Re: P15 25 cal owners question
Post by: miksatx on February 16, 2018, 11:18:55 AM
Crosman where I got mine.
Title: Re: P15 25 cal owners question
Post by: stony30 on February 16, 2018, 04:50:24 PM
Quote from: miksatx on February 15, 2018, 07:07:41 AM
My P15 .25 Mile high shot string.
Created: 12-11-2017 09:58:27 PM
Description: P15 shot string
Notes 1: 20 bar fill to 10 bar
Notes 2: 5 mags would be best.
Distance to Chrono (FT): 1.00
Ballistic Coefficient: 1.000
Bullet Weight (gr): 25.390
Altitude (FT): 5280.0
Temp: 50 °F
BP: 24.81 inHG
Shots
# FPS FT-LBS PF
48 769 33.35 19.52
47 782 34.48 19.85
46 786 34.84 19.96
45 791 35.28 20.08
44 795 35.64 20.19
43 803 36.36 20.39
42 806 36.63 20.46
41 813 37.27 20.64
40 815 37.45 20.69
39 820 37.91 20.82
38 820 37.91 20.82
37 824 38.29 20.92
36 823 38.19 20.90
35 819 37.82 20.79
34 820 37.91 20.82
33 817 37.64 20.74
32 818 37.73 20.77
31 822 38.10 20.87
30 822 38.10 20.87
29 819 37.82 20.79
28 821 38.01 20.85
27 821 38.01 20.85
26 812 37.18 20.62
25 822 38.10 20.87
24 822 38.10 20.87
23 822 38.10 20.87
22 819 37.82 20.79
21 821 38.01 20.85
20 823 38.19 20.90
19 824 38.29 20.92
18 811 37.09 20.59
17 823 38.19 20.90
16 821 38.01 20.85
15 823 38.19 20.90
14 820 37.91 20.82
13 820 37.91 20.82
12 823 38.19 20.90
11 820 37.91 20.82
10 821 38.01 20.85
9 822 38.10 20.87
8 820 37.91 20.82
7 822 38.10 20.87
6 825 38.38 20.95
5 823 38.19 20.90
4 822 38.10 20.87
3 825 38.38 20.95
2 826 38.47 20.97
1 795 35.64 20.19
Average: 815.69
StdDev: 12.49
Min: 769
Max: 826
Spread: 57
True MV: 815.78
Shots/sec: 0.08
Group Size (IN): 0.00
Did you have a shot string with stats from when your P15 was stock ?
Title: Re: P15 25 cal owners question
Post by: miksatx on February 16, 2018, 05:50:52 PM
All my info and experience with this p15 posted AirMax P15 .25 over at TalonTunes, other bullpups section.
Title: Re: P15 25 cal owners question
Post by: Tweeter on February 16, 2018, 08:06:20 PM
Hey Badger, Trenier has the huma reg for the p12, would check but this may fit the p15 if they use the same airtube?

https://www.trenieroutdoors.com/gear/huma-air-spa-airgun-regulators/ (https://www.trenieroutdoors.com/gear/huma-air-spa-airgun-regulators/)
Title: Re: P15 25 cal owners question
Post by: stony30 on February 17, 2018, 10:56:25 AM
Quote from: miksatx on February 16, 2018, 05:50:52 PM
All my info and experience with this p15 posted AirMax P15 .25 over at TalonTunes, other bullpups section.
link please
Title: Re: P15 25 cal owners question
Post by: miksatx on February 17, 2018, 11:01:32 AM
Quote from: stony30 on February 17, 2018, 10:56:25 AM
Quote from: miksatx on February 16, 2018, 05:50:52 PM
All my info and experience with this p15 posted AirMax P15 .25 over at TalonTunes, other bullpups section.
link please
http://talonairgun.com/forum/viewtopic.php?f=35&t=36961 (http://talonairgun.com/forum/viewtopic.php?f=35&t=36961)
Title: Re: P15 25 cal owners question
Post by: MB on February 17, 2018, 11:02:10 AM
Order direct from Huma, they will ship...https://www.huma-air.com/Artemis-P15-tuning-pressure-regulator (https://www.huma-air.com/Artemis-P15-tuning-pressure-regulator)
Title: Re: P15 25 cal owners question
Post by: stony30 on February 17, 2018, 02:10:53 PM
Thanks.  Does the P15 reg definitely need to be replaced ? I'll try to get a chrony and do a shot string starting at 200 to 220 bar.
Title: Re: P15 25 cal owners question
Post by: miksatx on February 17, 2018, 02:31:47 PM
stony30, chrony a definite need to determine how the regulator is working.
Title: Re: P15 25 cal owners question
Post by: badgerfarm on February 17, 2018, 03:02:53 PM
Tweeter,  the P12 and P15 take different size regs.  I'll just order one from Huma since I'm almost certain that the reg is acting up some.  Of course some of it is probably me too not used to shooting such a light bullpup.   Has anyone done any work with the striker spring in theirs and found the sweet spot on the reg?  Also what diameter is your transfer port?  I'll find out when I get into mine but I was just curious.
Title: Re: P15 25 cal owners question
Post by: miksatx on February 17, 2018, 04:01:48 PM
Quote from: badgerfarm on February 17, 2018, 03:02:53 PM
Has anyone done any work with the striker spring in theirs and found the sweet spot on the reg?  Also what diameter is your transfer port?  I'll find out when I get into mine but I was just curious.
Yes and 5.5mm TP.
Title: Re: P15 25 cal owners question
Post by: stony30 on February 18, 2018, 01:08:10 AM
...
Title: Re: P15 25 cal owners question
Post by: stony30 on February 18, 2018, 01:09:02 AM
Quote from: miksatx on February 17, 2018, 02:31:47 PM
stony30, chrony a definite need to determine how the regulator is working.
Ok thanks
Title: Re: P15 25 cal owners question
Post by: stony30 on February 18, 2018, 01:12:12 AM
Quote from: miksatx on February 17, 2018, 04:01:48 PM
Quote from: badgerfarm on February 17, 2018, 03:02:53 PM
Has anyone done any work with the striker spring in theirs and found the sweet spot on the reg?  Also what diameter is your transfer port?  I'll find out when I get into mine but I was just curious.
Yes and 5.5mm TP.
Stock is 5.5 ? I thought you had to drill yours out to 5.5. Did you end up buying that P15 in .177 after all?
Title: Re: P15 25 cal owners question
Post by: miksatx on February 18, 2018, 02:58:15 AM
Quote from: stony30 on February 18, 2018, 01:12:12 AM
Quote from: miksatx on February 17, 2018, 04:01:48 PM
Quote from: badgerfarm on February 17, 2018, 03:02:53 PM
Has anyone done any work with the striker spring in theirs and found the sweet spot on the reg?  Also what diameter is your transfer port?  I'll find out when I get into mine but I was just curious.
Yes and 5.5mm TP.
Stock is 5.5 ? I thought you had to drill yours out to 5.5. Did you end up buying that P15 in .177 after all?
No stock TP was 4.45mm. badger ask what diameter is my TP. Hence the 5.5mm. No P15 .177 yet.
Title: Re: P15 25 cal owners question
Post by: stony30 on February 18, 2018, 01:43:39 PM
Did enlarging the tp to 5.5 make a difference?
Title: Re: P15 25 cal owners question
Post by: miksatx on February 18, 2018, 02:18:31 PM
Quote from: stony30 on February 18, 2018, 01:43:39 PM
Did enlarging the tp to 5.5 make a difference?
It made some difference. But twicking the reg higher, bigger TP and shimming the spring didn't net me the 900+ with jsb 25.3 I was shooting for.  Next time I shoot it down I'll cc the plenum with a reg on it.
Title: Re: P15 25 cal owners question
Post by: miksatx on February 19, 2018, 06:19:55 PM
Only has a 10cc plenum.