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Discovery Medium Hammer Spring

$8.00$10.00

Discovery Medium Spring, This short heavy spring helps to increase shot count as well

as offer a greater tuning range with the addition of a power adjuster and is an excellent upgrade for your disco.

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Product Description

Discovery Medium Spring Gen2, This short heavy spring helps to increase shot count as well

as offer a greater tuning range with the addition of a power adjuster and is an excellent upgrade for your disco or maximus.

This spring spring combined with our power adjuster gives a power range of of 3-19fpe in .177 using a stock maximus.

It can be set for a variety of power and shot count combinations but were is does best is in the 8-14fpe range in .177 (expect slightly higher power levels and shot count in .22)

And at 13fpe using 7.9gr pellets you can get 45 shots from just a 1650psi fill and with a extreme spread of 55fps

Here is a sample shot string from a stock maximus with the Gen2 spring and power adjust installed its shot from a 200psi fill using 7.9gr pellets:

It is split into two parts because I’ve found the chronograph will some times loose connection after ~40 shots so as a precaution I split into two.

Created   Description   Notes1   Notes2   Weight
4/11/2017 8:38   maximus gen2 spring  2000psi      7.9gr
shot #   FPS   FT-LBS
1   646   7.32
2   667   7.81
3   684   8.21
4   673   7.95
5   693   8.43
6   676   8.02
7   687   8.28
8   684   8.21
9   688   8.3
10   663   7.71
11   699   8.57
12   714   8.94
13   725   9.22
14   717   9.02
15   716   8.99
16   717   9.02
17   694   8.45
18   713   8.92
19   ERROR 3
20   746   9.76
21   727   9.27
22   723   9.17
23   669   7.85
24   676   8.02
25   718   9.04
26   739   9.58
27   759   10.11
28   739   9.58
29   755   10
30   736   9.5
31   726   9.25
32   ERROR 3
33   774   10.51
34   732   9.4
35   742   9.66
36   771   10.43
37   715   8.97
38   728   9.3
39   777   10.59
40   735   9.48
41   773   10.48
42   804   11.34
43   775   10.54
44   805   11.37
45   ERROR 3
46   800   11.23
47   822   11.85
48   824   11.91
49   806   11.4
50   847   12.59
AVG   StdDev   Min   Max   Spread
731.89   47.94   646   847   201

Created   Description   Notes1   Weight
4/11/2017 8:46   maximus gen2 spring   4 turns out 1650psi pt2   7.9
shot #   FPS   FT-LBS
1   844   12.5
2   826   11.97
3   855   12.83
4   864   13.1
5   844   12.5
6   890   13.9
7   851   12.71
8   ERROR 3
9   864   13.1
10   847   12.59
11   841   12.41
12   ERROR 3
13   873   13.37
14   854   12.8
15   830   12.09
16   ERROR 3
17   856   12.86
18   870   13.28
19   868   13.22
20   874   13.4
21   865   13.13
22   875   13.43
23   887   13.8
24   857   12.89
25   892   13.96
26   873   13.37
27   858   12.92
28   873   13.37
29   859   12.95
30   868   13.22
31   881   13.62
32   878   13.52
33   875   13.43
34   859   12.95
35   872   13.34
36   870   13.28
37   865   13.13
38   858   12.92
39   861   13.01
40   857   12.89
41   851   12.71
42   844   12.5
43   844   12.5
44   836   12.26
45   834   12.2
46   827   12
47   825   11.94
48   823   11.88
49   814   11.62
50   811   11.54
AVG   StdDev   Min   Max   Spread
856.23   19.66   811   892   81

 

Additional Information

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Medium Spring, Medium Spring Gen2

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