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  #1  
Old 11-10-2019, 09:27 PM
Ray1946
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Match Quality High Velocity ammo?



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Is there such an animal as "Match Quality" high velocity ammo and if so; where does it reside and who's name is on it?...........................
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Old 11-10-2019, 09:36 PM
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I dont know of any, right off hand. The 22lr doesn't do well in the transonic zone.

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Old 11-10-2019, 09:47 PM
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Only way to obtain match grade hi v 22lr is a custom order from Eley, Lapua or RWS.
It's what was done for the Aberdeen Ballistics lab...where it was determined that
the 22lr was insignificantly affected by the transition from supersonic to subsonic velocities.
Don't take my word for it. There's a link to it here at RFC. You can read the entire study
or just paragraph 5 of the conclusions.

Here's the previous post...

https://www.rimfirecentral.com/forum...1&postcount=25

Last edited by jaia; 11-10-2019 at 09:53 PM.
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Old 11-10-2019, 10:23 PM
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How about RWS 100 or some of the good biathlon ammunition? I thought that they were all "supersonic?"
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Old 11-11-2019, 07:23 AM
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Lapua and SK Biathlon are rated 1106 fps.
RWS R100 is rated 1138 fps.
Mach at sea level is 1128 fps.
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Old 11-11-2019, 07:33 AM
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I've read some pretty good reviews on
SK Long Range Match.
I haven't tried it yet but it's definitely on my list.
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Old 11-11-2019, 08:57 AM
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Quote:
Originally Posted by Jester560 View Post
The 22lr doesn't do well in the transonic zone.
In a future in which we all have plasma rifles in the 40 watt range, this myth will still live.
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Old 11-11-2019, 11:25 AM
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Quote:
Originally Posted by zukiphile View Post
In a future in which we all have plasma rifles in the 40 watt range, this myth will still live.
LOL

It isn't a myth. If you measure accuracy by the typical 2 to 6 MOA of cheap 22 lr ammo from cheap rifles you won't be bothered. If you measure 50 or 100 yard groups under .2 or .5 respectively than it is something to avoid. There is a simple reason all match ammo is subsonic. I won't even shoot hi V in my target guns, I don't need copper in the bores.
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Old 11-11-2019, 11:41 AM
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Isn't it amusing when folks ignore U.S. Army ballistics studies, when the conclusions don't fit the accepted internet claims?

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Old 11-11-2019, 12:42 PM
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Quote:
Originally Posted by jaia View Post
Isn't it amusing when folks ignore U.S. Army ballistics studies, when the conclusions don't fit the accepted internet claims?
Its why I joined the Corps.
How many inches is 2% @ 200 yds? Al wondered to himself while thinking about his grocery list for todays shopping/socialization mayhem.

I'd give Eley's hv a whirl just to satisfy the hv itch.
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Old 11-11-2019, 01:26 PM
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Fed claims they do"Hunter Match"

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Old 11-11-2019, 01:59 PM
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Hunter Match...is that an oxymoron?
Ya' know....words that don't quite fit together.

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Accurate estimation

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  #13  
Old 11-11-2019, 02:38 PM
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From the same U.S. Army ballistics study.

Quote:
7. A muzzle velocity of approximately 950 fps would minimize the wind sensitivity of Eley Tenex and RWS R-50 bullets. The wind sensitivity at a muzzle velocity of 950 fps would be approximately 20 percent less than that experienced at the standard velocity of 1090 fps.
This is what the same study said about velocities affect.

Is this the only instance where this specific velocity makes a difference and no higher velocities matter with heeled 22 LR bullets?

And what of wind deflection? Is this a myth?

http://team40x.com/wind/page8.html

Is all that pertains to the supposed reasons for standard velocity 22's being used in competition a myth?

If HV were made accurately then it would be just as good or equal to SV ammo for competition?

I don't mind one bit if this "proves" to be the case. I think we could use some myth busting action and settle the supposed wrongly published information?
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Old 11-11-2019, 02:57 PM
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Points I've taken from this thread and the other:
Transonic instability isn't as critical as some information states.

High Velocity .22 long rifle bullets suffer more wind drift than Subsonic bullets, making it more difficult to judge point of impact because of varying wind speeds.

High Velocity .22 long rifle ammunition COULD be as accurate as Subsonic Match IF it were manufactured to the same quality.

Such quality High Velocity ammo does not exist.
Oh well. You can't shoot ifs.
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  #15  
Old 11-11-2019, 03:33 PM
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Up until about a year ago, I would have agreed with the transonic effect
as being detrimental to accuracy with the 22lr. Then I ran into conflicting data.
At 200 yards, a supersonic 22lr produced almost the same results as a subsonic 22lr.
Same bullets by the same manufacturer fired under the same conditions, one box hi-v, one box subsonic.
If the transonic theory applied to the 22lr, it shouldn't have happened.
I asked questions here at RFC looking for an explanation and was pointed to the Aberdeen study.
Further shooting over the past year has produced results that agree with the conclusions drawn
by Dr. McCoy at the ballistics lab. Lack of accuracy with hi-v 22lr is not due to transonic shift
but can be fully explained by simply inspecting those cartridges for defects.
If the quality of the cartridges reeks, so do the results.

Last edited by jaia; 11-11-2019 at 03:36 PM.
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