S410k Power Curve

[Ao]

Just some results I took the other night.
These were recorded using a combro cb625 chrono at 30 yds mild wind with tasco mag4-16x40 scope at 16x. Rifle in .22 taken from a 190 bar fill.

Shot # FPS Ft-lb
1 575 11.76
2 574 11.74
3 575 11.77
4 576 11.79
5 575 11.77
6 575 11.76
7 575 11.75
8 578 11.8
9 578 11.79
10 579 11.81
11 575 11.77
12 575 11.79
13 572 11.64
14 573 11.67
15 574 11.7
16 572 11.69
17 573 11.69
18 574 11.7
19 575 11.74
20 572 11.65
21 575 11.74
22 575 11.75
23 572 11.64
24 576 11.8
25 576 11.79
26 575 11.75
27 575 11.75
28 575 11.74
29 575 11.74
30 576 11.8
31 577 11.82
32 576 11.8
33 574 11.7
34 576 11.8
35 576 11.79
36 575 11.77
37 574 11.72
38 576 11.8
39 575 11.74
40 576 11.79 --- 140bar
41 575 11.74
42 575 11.74
43 575 11.55
44 576 11.79
45 575 11.74
46 573 11.67
47 573 11.65
48 573 11.69
49 572 11.64
50 577 11.82
51 575 11.75
52 574 11.72
53 573 11.79
54 574 11.5
55 573 11.65
56 565 11.7
57 572 11.62
58 570 11.7
59 572 11.62
60 570 11.54
61 570 11.56 --- 110bar
62 571 11.61
63 567 11.44
64 567 11.43
65 567 11.43
66 566 11.38
67 567 11.41
68 565 11.38
69 564 11.3
70 563 11.25 --- 100bar
71 564 11.29
72 563 11.2
73 560 11.16
74 554 11.16
75 553 10.09
76 550 10.87
77 545 10.76
78 544 10.7
79 541 10.56
80 541 10.4 --- 90bar !!! (Time to refill) !!!
81 541 10.4
82 538 10.28
83 535 10.17
84 532 10.05
85 528 9.93
86 523 9.74
87 521 9.6
88 517 9.49
89 514 9.4
90 510 9.27 --- 70bar
91 504 9.04
92 501 9.01
93 500 8.88
94 496 8.75
95 491 8.56
96 488 8.47
97 484 8.33
98 480 8.21
99 474 7.99
100 470 7.85 - 50 bar




Actual Targets Shot At!


It is clear to see a drop off on the targets, 10 shots at each. They start to drop at shot 80 where the power begins to drop below 10ftlb. I would say say the advertised 80 shots is about right. Interesting....

HTH
Ian
Airgun.org

[This message was edited by Ao on 31 August, 2003 at 17:13.]

[airgunner2388]

Very interesting, thanks for posting it.

Regards
Barry

[lionel]

Ian - those figures from an unregulated rifle look pretty incredible to me. Can you explain shots six and seven though, which have the same fps but very different ft/lbs - just a typo?

Nice holes in those targets as well. Can I assume that was with AA Field 5.52?

Lionel

[Ao]

Yeah sorry, I origionally recorded them onto a sheet of paper and typed them into exel (Typo). Something that the combro seemed to do is list fps - ftlb with variatioon. E.g.

575 - 11.75
575 - 11.74
575 - 11.76

I guess it just rounds it to the nearest figure in FPS? The s410k is pretty new (under a year from factory) and is well kept. These were the figures recorded though. Airgun seems pretty consistent I agree.

[Ao]

Shot

1-75 RANGE FPS = 22
1 -75 RANGE FTLB = 0.60

1-75 - AV FPS = 572.3
1-75 - AV FTLB = 11.4936

[Bury_Boy]

I've got an S410K coming this week so this gives me a great reference point.. thanks A0

Mark

[TER...]

Great post, cheers.
What pellet are you using?
TER...

[BuddyBoy]

The 410s are all very consistent - mine is, Darren's is (both results posted on the BBS) they are really flat for the first 70 or 80 <img src="http://jsramsbottom.co.uk/bbs/e/icon_smile.gif" alt="Smile" width="15" height="15"><!--graemlin:-->

[robinghewitt]

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> I guess it just rounds it to the nearest figure in FPS? [/quote]

It rounds down in fps so 575.9 will show as 575.

The first digit on the display can only show 0,1 or 2, so you have to drop below 300fps before it can give you a place of decimals.

[Koz]

.

[Koz]

You can save yourself a lot of typing if you get the Combro PC interface.
You can paste the data from the Combro s/ware's data file straight onto Excel.

Of course you have to shoot within reach of a PC but if you've got a lap top you can still combine range shooting with chrono stringing.

That's my excuse for buying a laptop anyway <img src="http://jsramsbottom.co.uk/bbs/e/icon_wink.gif" alt="Wink" width="15" height="15"><!--graemlin:-->
I found shooting off strings indoors didn't give the same results.
Temperature probably.

[Ao]

I was using AA Field at the garden range <img src="http://jsramsbottom.co.uk/bbs/e/icon_biggrin.gif" alt="Big Grin" width="15" height="15"><!--graemlin:-->. about 100m from my PC. The results took about 2 hours to record with a multi shot airgun. Bring on the S200T single shot, that should be interesting! <img src="http://jsramsbottom.co.uk/bbs/e/icon_biggrin.gif" alt="Big Grin" width="15" height="15"><!--graemlin:--> <img src="http://jsramsbottom.co.uk/bbs/e/icon_wink.gif" alt="Wink" width="15" height="15"><!--graemlin:-->

Cheers
Ian

[TER...]

Time to invest in a laptop mate!
Was that 5.51's or 5.52's?