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  #31  
Old 07-04-2018, 11:10 AM
jaia
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This morning left me giggling.
4th of July, alone at the 200 yard range.
CZ 455 Lilja Varmint, heavy bags and a box from the bottom of the stash



Yep, Federal AutoMatch, bulk 22lr normally vaporized by the kids.
Quick look shows bare lead bullets with nicks and dings, irregular seating/runout.
Not wanting to lead up the bore on the Lilja, lubed each bullet before chambering.



That's paraffin and high performance 2 cycle oil, 10 to 1 mix by volume.
Just enough to coat the lead and minimize the deposits in the rifling.

Headwind at 4-8 mph
1260 fps hi
1233 avg
1201 low

ballistic calculator shows 3.9 inches of vertical for a 60 fps ES



7 inches of vertical, 8 inches of horizontal
not exactly what I'd call match ammo, 4 moa results off the bench.
But, apply the half/third rule, it gives a pretty decent idea of results at shorter distances.
Half of 200 yards is 100, 1/3 of 8 inches is about 2-1/2 inches, what I'd expect at 100 yards.
At 50 yards 1/3 of 2-1/2 is about 7/8 inch which is about right.
and at 25 yards, about 1/4 inch of spread which is fine for picking off tree rats 2 branches up.

Very relaxing and funny morning.
I could see the rounds spiraling off line against the backer in the morning sunlight.
No consistency whatsoever due to lack of ammo quality...and 1 fail to fire.
Pain in the butt to extract it from the Lilja EPS match chamber,
It is bulk, have to expect that.

Last edited by jaia; 07-04-2018 at 11:46 AM.
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  #32  
Old 07-08-2018, 12:55 PM
jaia
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Another morning another 50
Bulk Federal 36 gr CPHP 1260 fps per the box.

Hi 1320 fps
Lo 1261 fps
Avg 1291 fps





8 inches of vertical, 8 inches of horizontal

Same rifle and setup, 20 minutes before shooting the Federal
For comparison, 20 shots with Lapua Polar Biathlon shows about 2-1/2 inches of vertical
Left target shot first with scope settings from last week.
Right target shot after adjusting crosshairs to center of first group.


Last edited by jaia; 07-08-2018 at 01:00 PM.
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  #33  
Old 07-08-2018, 01:29 PM
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If anyone wants to use a coat of ‘easy and consistent’ bullet lube like you are doing go to the farm supply and get a can of Udder Balm.
Good as bullet lube and for chapped lips, wounds, etc.
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  #34  
Old 07-08-2018, 01:47 PM
jaia
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My paraffin and 2 stroke oil is only used on non lubricated 22 lr.
A dab on the paper towel is all that's needed for 50 shots.
Wipe the bullet on the spot of lube, then load and fire.
Minimal application, no globs or clumps.
No lead build up or copper from the plated bullets left in the bore, easy cleaning after.
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  #35  
Old 07-08-2018, 01:57 PM
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Udder Balm works the same way. And if used on different brands of ammo maintains a consistent bore/lube condition (yours does too); this is a secret so dont tell anybody.....
Btw, what 22rf ammo is unlubed?
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  #36  
Old 07-08-2018, 03:16 PM
jaia
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Most of the high velocity 22lr.
Automatch is straight lead and the others are copper plated.
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  #37  
Old 07-08-2018, 07:06 PM
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I have been under the impression for decades that the plain lead bullets have a hard ‘waxy’ lube coating and that even the copper wash plated bullets do also.
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  #38  
Old 07-08-2018, 07:51 PM
jaia
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If they are, it doesn't do the job.
Without the extra homemade lube, I end up with deposits in the rifling.
I take the additional step to minimize my after shooting cleaning.
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  #39  
Old 07-10-2018, 10:30 AM
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Tried 50 at 200 this morning. 78 degrees with 3 to 4 mph wind right to left. Looking straight east into the sun so a little hard to see the target. Target is same size as
SR 42 C. I don't have a chronograph so no speeds available. Ammo is Federal Gold Medal Ultra Match UM22.

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  #40  
Old 07-10-2018, 12:41 PM
jaia
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Lion, 4.5x4.5 inch spread is about as good as I've seen with 22lr at 200 yards.
50 shots doesn't allow for any cherry picking. Standard deviation is fine
for statistical analysis, but at 200 yards the ES defines the results.

Gorgeous rig...a bit envious on this side of the keyboard.
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  #41  
Old 07-10-2018, 12:52 PM
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Geeze Wayne, why can't you dial up those 3 to 4 mph winds when I've shot the State Championships up there the last two years! LOL

Landy
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  #42  
Old 07-10-2018, 12:53 PM
jaia
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Landy, do tuners need to be adjusted to fit distance?
Only folks I know that use 'em shoot 50 yards.
They set 'em and forget 'em.
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  #43  
Old 07-10-2018, 01:57 PM
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Quote:
Originally Posted by jaia View Post
Landy, do tuners need to be adjusted to fit distance?
Only folks I know that use 'em shoot 50 yards.
They set 'em and forget 'em.
If you subscribe to positive barrel compensation, the answer is yes. It's not a lot different than ladder testing in CF at specified distances to find where changes in powder charges cause the least amount of change in vertical POI.

With RFBR at 50 yds/meters you gain very little with compensation because we're shooting match ammo with Standard Deviations in the range of 5 fps to 7 fps, but if I was trying to shoot at 100 yds and longer, I would attempt to achieve positive compensation at the specific distance I was interested in.

A word of caution. I've never found it as easy to tune a RF rifle as most would suggest it is. Fact is, I've yet to test a rifle in my ballistic tunnel that was truly tuned even when someone brings a rifle and is convinced it's tuned.

I don't know what the percentages are, but there are a lot of guys who set and forget and also a lot of guys who are constantly fiddling with the tuner.

Landy
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  #44  
Old 07-10-2018, 02:17 PM
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When it comes to tuners I'm a set it and forget type. I tune it at 50 yards and if it doesn't work at 200 I blame the ammo and try a different lot # or brand.

Landy; I got lucky with the wind. This afternoon it's back up to its normal 15 mph. Going to be fun shooting ARA this evening. Oh well, if I can agg 1700 I'll be happy.
Wayne
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  #45  
Old 07-11-2018, 12:03 PM
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Iron sights with lever gun at 200y.

12 " round gong. Shot a couple of rounds over the top before adjusting the elevation to the sweet spot.

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