Post by BroJames on Jul 6, 2009 16:19:58 GMT 8
Finally my new chrono arrived. I always wanted to make a comparison between the two instruments and see how they fare.
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Here, both instruments out of their boxes. Left is the excortech shooting chrono ready for use. The green box is the F1 chrony and its attachements.
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Here's the F1 chrony unfolded and attachments assembled and ready for shooting. (don't forget to buy 9V batteries)
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The AG used is a Spitfire 1000 in .177 caliber. Pellets were weighed to make sure they are of the same weight. Just a note, This AG is designed for 10M target competitions we initially chronoed it at 350 FPS on the Xcortech. We made some modifications on the internals to see how it performs on higher power output. (A separate post on this in another thread)
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Below are the shot strings made with one single charge of CO2 from the pygmy tank.
SHOT STRING RESULTS(in FPS):
Pellet brand: Silver Streak
Caliber: .177
Weight: .6 grams
Shot No. | Xcortech | F1 Chrony | FPS Variance |
1 | 350.4 | 347.7 | 2.7 |
2 | 439 | 435.5 | 3.5 |
3 | 441.6 | 438.6 | 3 |
4 | 470.4 | 468.4 | 2 |
5 | 468.3 | 464.8 | 3.5 |
6 | 436.7 | 434 | 2.7 |
7 | 438.7 | 434.6 | 4.1 |
8 | 444.4 | 442.6 | 1.8 |
9 | 452.2 | 446.3 | 5.9 |
10 | 526.9 | 520.2 | 6.7 |
11 | 410.8 | 408.2 | 2.6 |
12 | 416.1 | 411.3 | 4.8 |
13 | 467.4 | 460.7 | 6.7 |
14 | 460.8 | 454.3 | 6.5 |
15 | 453.3 | 448.5 | 4.8 |
Pellet brand: Hammer Head
Caliber: .177
Weight: .5 grams
Shot No. | Xcortech | F1 Chrony | FPS Variance |
16 | 463.7 | 458.5 | 5.2 |
17 | 574.6 | 572 | 2.6 |
18 | 585.3 | 585.6 | -0.3 |
19 | 593.2 | 588.5 | 4.7 |
20 | 578.1 | 571.5 | 6.6 |
21 | 582.1 | 581.8 | 0.3 |
22 | 569.3 | 567.4 | 1.9 |
23 | 589.5 | 583.7 | 5.8 |
24 | 570.2 | 560.5 | 9.7 |
25 | 557.1 | 558.3 | -1.2 |
26 | 561.6 | 562.4 | -0.8 |
27 | 587.2 | 584.1 | 3.1 |
28 | 596.5 | 592.8 | 3.7 |
29 | 582.1 | 574.4 | 7.7 |
30 | 564.6 | 560.3 | 4.3 |
Pellet brand: Eagle Head
Caliber: .177
Weight: .6 grams
Shot No. | Xcortech | F1 Chrony | FPS Variance |
31 | 424.8 | 418.9 | 5.9 |
32 | 421.2 | 414.7 | ] 6.5 |
33 | 443.9 | 436.2 | 7.7 |
34 | 433.6 | 426.8 | 6.8 |
35 | 417.9 | 414.5 | 3.4 |
36 | 416.3 | 409.2 | 7.1 |
37 | 447.1 | 439.8 | 7.3 |
38 | 425.5 | 419.5 | 6 |
39 | 425.8 | 419.5 | 6.3 |
40 | 415.4 | 419.5 | -4.1 |
41 | 421.9 | 416 | 5.9 |
42 | 404 | 399.2 | 4.8 |
43 | 383.5 | 377.4 | 6.1 |
44 | 410.4 | 408.8 | 1.6 |
45 | 495.9 | 494.4 | 1.5 |
46 | 583 | 580.1 | 2.9 |
Pellet brand: H&N
Caliber: .177
Weight: .4 grams
Shot No. | Xcortech | F1 Chrony | FPS Variance |
47 | 594.6 | 588.2 | 6.4 |
48 | 592.7 | 591.7 | 1 |
49 | 606.1 | 592.3 | 13.8 |
50 | 597.4 | 582.9 | 14.5 |
And Here's a shot of the groupings.
Nice test sir. I hope further test can be carried out and with c-t-c measurements. Sana including quick silver which is generally recognized as the best local pellet and that brand with "zero" in it.