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Old 02-27-2020, 05:49 AM
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0:04 / 6:59 .22lr Lethality Revisited - 300 Yard Ballistics Test



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This is an old video and probably has been posted before but I think it's fascinating even today. It's just 6 minutes.

Frankly I've never shot my 452 at anything at 300 yards, benchrest or not. I'm impressed.

https://www.youtube.com/watch?v=-DzLQGv-w5M
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Old 02-27-2020, 06:17 AM
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Wow...I never would have imagined those results between those 2 distances.
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Old 02-27-2020, 04:29 PM
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What is the point? What is next, the .22 at 600 yards?

Bill
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Old 02-27-2020, 04:50 PM
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What is the point? What is next, the .22 at 600 yards?

Bill
Lethality of the 22rf bullet is the point.
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Old 02-27-2020, 05:46 PM
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In reviewing an on-line ballistic chart which includes data for the mini-mag I see the following

Muzzle - 1,260 fps
100 yard velocity - 1,003 fps - bullet drop 5.6"
200 yard velocity - 874 fps - bullet drop 44.1"

My guess would be that the 300 yard data would show the velocity being in the 550 - 650 fps range and the bullet drop would be greater than 60 inches. If someone wants to believe that a 40 grain bullet at that distance is suitable for any other purpose than plinking then best of luck to them

My counsel would be this is why we have centerfire cartridges

Bill
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Old 02-27-2020, 07:54 PM
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I reviewed some of my shooting data and ballistics charts. Even standard velocity is still going around 700 fps at 300 yards. I've been getting 40 or more hits out of 50 shots on a 15" by 15" steel target at 350 yards with my Vudoo and my 10-22.
I have to crank on my scope pretty well. I haven't tried using holdover. Might be something to try.

https://www.rimfirecentral.com/forum....php?t=1164837

Food for thought.
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Old 02-27-2020, 08:35 PM
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Im thinking a hash-lined scope reticule would be aces for hold overs, better than mil-dot as the dots subtend a lot of small targets?
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Old 02-28-2020, 07:24 AM
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Im thinking a hash-lined scope reticule would be aces for hold overs, better than mil-dot as the dots subtend a lot of small targets?
I have a few mil dot reticles, the crosshairs and dots are way too big for anything smaller than coyotes.
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Old 02-28-2020, 08:36 AM
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My next thought would be a ret. with that small hole aperture at the crosshairs center?
What are precision LR shooters using?
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Old 02-28-2020, 08:42 AM
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My next thought would be a ret. with that small hole aperture at the crosshairs center?
What are precision LR shooters using?
Fine crosshairs or 1/8 min dot.
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Old 02-28-2020, 10:59 AM
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The track through the gel was 'flat'. That would indicate that the trajectory of the bullet was flat?
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Old 02-28-2020, 01:32 PM
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Good observation, one would think at 300 yards that bullet would have traveled down at quite the angle.

Carl
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Old 02-28-2020, 02:09 PM
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Quote:
Originally Posted by gcrank1 View Post
My next thought would be a ret. with that small hole aperture at the crosshairs center?
What are precision LR shooters using?
Fine Cross hairs and dots are old school... about the only competitors using those now are the benchrest guys and folks shooting paper at known distance.

Read this article. It is specific to centerfire, but the rimfire equivalent is basically the same type of thing.

https://precisionrifleblog.com/2018/12/21/best-scope/

Personally, my LR scopes all have some kind of Mil-hash reticle. On my LR rimfire gun, it is a Vortex PST Gen II 5-25x50 with their EBR-7C reticle. I selected that to "match" the Vortex Razor HD Gen II 4.5-27x56 on my primary centerfire LR gun.
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Old 02-28-2020, 02:15 PM
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Parabolic trajectory vs 'flat'....
Considering that we are using basically 180deg above 'flat earth' and each degree has 60min. the few moa as trajectory is a thin amount of actual degree's at that distance.
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Old 02-28-2020, 02:55 PM
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Originally Posted by dash4cash View Post
Good observation, one would think at 300 yards that bullet would have traveled down at quite the angle.

Carl
At 350 yards, the highest point of the path of bullet is only 6 feet above the line of sight. Seems like a lot but the angle the bullet hits the target is still relatively flat.
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