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2nd string

April 27 2017 at 11:56 PM

Abrackeen  (Login Abrackeen)
YF12


Response to P-12 project

Shot another string tonight. I had to use H&N 21.14's since I mistook a few tins of .25 Cal for .22 cal.

First thing I noticed while cleaning after the first string was a couple baffle strikes. I reamed all of them out and retested. No more strikes. I also had suspicion that my hammer and spring were causing issues. I didn't pull the hammer, but I did change the spring back to stock.

I shot this string and it looks like I need to check for the hammer binding. If that doesn't solve the issue I'm going to switch over to a HuMa regulator and see what happens.

Created: 04-27-2017 22:23:11
Description: P-12 .22 Polygonal
Notes 1: H&N Barracuda Match 21.14gr
Notes 2: 3000psi start
Distance to Chrono (FT): 0.50
Ballistic Coefficient: 0.038
Bullet Weight (gr): 21.140
Altitude (FT): 738.0
Temp: N/A
BP: N/A
Shots
# FPS FT-LBS PF
59 836 32.81 17.67
58 833 32.58 17.61
57 837 32.89 17.69
56 846 33.60 17.88
55 837 32.89 17.69
54 811 30.88 17.14
53 835 32.73 17.65
52 823 31.80 17.40
51 830 32.34 17.55
50 811 30.88 17.14
49 825 31.95 17.44
48 831 32.42 17.57
47 824 31.88 17.42
46 821 31.65 17.36
45 816 31.26 17.25
44 816 31.26 17.25
43 832 32.50 17.59
42 832 32.50 17.59
41 830 32.34 17.55
40 839 33.05 17.74
39 822 31.72 17.38
38 824 31.88 17.42
37 827 32.11 17.48
36 821 31.65 17.36
35 830 32.34 17.55
34 822 31.72 17.38
33 820 31.57 17.33
32 823 31.80 17.40
31 833 32.58 17.61
30 816 31.26 17.25
29 831 32.42 17.57
28 824 31.88 17.42
27 828 32.19 17.50
26 825 31.95 17.44
25 830 32.34 17.55
24 822 31.72 17.38
23 810 30.80 17.12
22 819 31.49 17.31
21 828 32.19 17.50
20 819 31.49 17.31
19 831 32.42 17.57
18 818 31.41 17.29
17 827 32.11 17.48
16 829 32.26 17.53
15 823 31.80 17.40
14 829 32.26 17.53
13 827 32.11 17.48
12 817 31.34 17.27
11 814 31.11 17.21
10 805 30.42 17.02
9 822 31.72 17.38
8 831 32.42 17.57
7 807 30.58 17.06
6 825 31.95 17.44
5 824 31.88 17.42
4 820 31.57 17.33
3 821 31.65 17.36
2 816 31.26 17.25
1 815 31.18 17.23
Average: 824.41
StdDev: 8.18
Min: 805
Max: 846
Spread: 41
True MV: 825.65

 
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