There was small discussion about Zeroing weather function missing in Kestrel. This got me worried about accuracy and thus spurred me to test this with my new Kestrel. Below results were ran by me on my Strelok android app and Kestrel 5700.
None of these elevation calls have been tested in real life and it was not in the scope of this test.
-Ran with 22LR which is very sensitive to weather and when looking at the results I do not wonder at all why I felt that I needed a Kestrel.. Strelok is good at handling atmospherics and else but this is useless without specific atmospherics information.
-The summary is that with rimfire/centerfire zeroing weather is quite unimportant in a Kestrel although zeroing at long distances cripples the strength of ballistic data based on atmospherics. But I noticed that even Strelok with the zero weather wasn't giving enough of elevation change at 50m what I think I have noticed. I'd say:
-Zero at the closest range possible
-Even though Kestrel does not have Zeroing Weather, on centerfire it works just well unless you are zeroing (probably) at 200-300 meter instead of ~100 and then moving to a location with different DA.
-Not having Zeroing Weather function seems to restrict zero distance slightly.
No spin drift
316 ms / 1037 fps
0.121 BC G1
50m / 54.68yds zero
Zeroing temp for Strelok:
30C / 86F
1016mb / 30.0inHg
85% RH
DA 637m / 697yds
Test 1, testing with the original zero temps. Both engines have the same information and should give same output.
30C / 86F
1016mb / 30.0inHg
85% RH
DA 637m / 697yds
Distance 50m / 55yds (Strelok Zero & Zeroing Weather)
Kestrel shows 0.01mil due to yards-meter conversion. (bug?)
Strelok: 0mil 0moa
Kestrel: 0.01mil 0.03moa
Distance 100m / 109yds
Strelok: 2.4mil 8.1moa
Kestrel: 2.35mil 8.1moa
Distance 200m / 219yds
Strelok: 8.7mil 30.0moa
Kestrel: 8.76mil 30.1moa
Test 2 with higher temps.
36C / 96.8F
1016mb / 30.0inHg
85% RH
DA 894m / 977yds
Distance 50m
Strelok: 0.0mil 0.0moa
Kestrel: 0.01mil 0.03moa
Distance 100m
Strelok: 2.3mil 8.0moa
Kestrel: 2.33mil 8.01moa
Distance 200m
Strelok: 8.6mil 29.7moa
Kestrel: 8.66mil 29.75moa
Test 3, lowered everything for a nice summer day sample.
15C / 59F
1002mb / 29.59inHg
50% RH
DA 150m / 164yds
Distance 50m
Strelok: 0.0mil 0.1moa
Kestrel: 0.01mil 0.03moa
Distance 100m
Strelok: 2.4mil 8.3moa
Kestrel: 2.4mil 8.26moa
Distance 200m
Strelok: 9mil 30.9moa
Kestrel: 9.0mil 30.96moa
Test 4, again lowered for a mild winter day.
-10C / 14F
994mb / 29.35inHg
50% RH
DA -746m / 816yds
Distance 50m
Strelok: 0.1mil 0.2moa
Kestrel: 0.01mil 0.04moa (change occurred?)
Distance 100m
Strelok: 2.6mil 8.8moa
Kestrel: 2.52mil 8.65moa
Distance 200m
Strelok: 9.5mil 32.8moa
Kestrel: 9.54mil 32.80moa
Test 5, lowered temps for good winter day, Baro increased.
-25C / -13F
1012mb / 29.88inHg
40%
DA -1569m / 1716yds
Distance 50m
Strelok: 0.1mil 0.03moa
Kestrel: 0.01mil 0.04moa
Distance 100m
Strelok: 2.7mil 9.3moa
Kestrel: 2.62mil 9.01moa
Distance 200m
Strelok: 10.0mil 34.5moa
Kestrel: 10.03mil 34.47moa
Distance 300m
Strelok: 19.4mil 66.6moa
Kestrel: 19.48mil 66.95moa
None of these elevation calls have been tested in real life and it was not in the scope of this test.
-Ran with 22LR which is very sensitive to weather and when looking at the results I do not wonder at all why I felt that I needed a Kestrel.. Strelok is good at handling atmospherics and else but this is useless without specific atmospherics information.
-The summary is that with rimfire/centerfire zeroing weather is quite unimportant in a Kestrel although zeroing at long distances cripples the strength of ballistic data based on atmospherics. But I noticed that even Strelok with the zero weather wasn't giving enough of elevation change at 50m what I think I have noticed. I'd say:
-Zero at the closest range possible
-Even though Kestrel does not have Zeroing Weather, on centerfire it works just well unless you are zeroing (probably) at 200-300 meter instead of ~100 and then moving to a location with different DA.
-Not having Zeroing Weather function seems to restrict zero distance slightly.
No spin drift
316 ms / 1037 fps
0.121 BC G1
50m / 54.68yds zero
Zeroing temp for Strelok:
30C / 86F
1016mb / 30.0inHg
85% RH
DA 637m / 697yds
Test 1, testing with the original zero temps. Both engines have the same information and should give same output.
30C / 86F
1016mb / 30.0inHg
85% RH
DA 637m / 697yds
Distance 50m / 55yds (Strelok Zero & Zeroing Weather)
Kestrel shows 0.01mil due to yards-meter conversion. (bug?)
Strelok: 0mil 0moa
Kestrel: 0.01mil 0.03moa
Distance 100m / 109yds
Strelok: 2.4mil 8.1moa
Kestrel: 2.35mil 8.1moa
Distance 200m / 219yds
Strelok: 8.7mil 30.0moa
Kestrel: 8.76mil 30.1moa
Test 2 with higher temps.
36C / 96.8F
1016mb / 30.0inHg
85% RH
DA 894m / 977yds
Distance 50m
Strelok: 0.0mil 0.0moa
Kestrel: 0.01mil 0.03moa
Distance 100m
Strelok: 2.3mil 8.0moa
Kestrel: 2.33mil 8.01moa
Distance 200m
Strelok: 8.6mil 29.7moa
Kestrel: 8.66mil 29.75moa
Test 3, lowered everything for a nice summer day sample.
15C / 59F
1002mb / 29.59inHg
50% RH
DA 150m / 164yds
Distance 50m
Strelok: 0.0mil 0.1moa
Kestrel: 0.01mil 0.03moa
Distance 100m
Strelok: 2.4mil 8.3moa
Kestrel: 2.4mil 8.26moa
Distance 200m
Strelok: 9mil 30.9moa
Kestrel: 9.0mil 30.96moa
Test 4, again lowered for a mild winter day.
-10C / 14F
994mb / 29.35inHg
50% RH
DA -746m / 816yds
Distance 50m
Strelok: 0.1mil 0.2moa
Kestrel: 0.01mil 0.04moa (change occurred?)
Distance 100m
Strelok: 2.6mil 8.8moa
Kestrel: 2.52mil 8.65moa
Distance 200m
Strelok: 9.5mil 32.8moa
Kestrel: 9.54mil 32.80moa
Test 5, lowered temps for good winter day, Baro increased.
-25C / -13F
1012mb / 29.88inHg
40%
DA -1569m / 1716yds
Distance 50m
Strelok: 0.1mil 0.03moa
Kestrel: 0.01mil 0.04moa
Distance 100m
Strelok: 2.7mil 9.3moa
Kestrel: 2.62mil 9.01moa
Distance 200m
Strelok: 10.0mil 34.5moa
Kestrel: 10.03mil 34.47moa
Distance 300m
Strelok: 19.4mil 66.6moa
Kestrel: 19.48mil 66.95moa
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