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  #766  
Old 07-19-2019, 07:32 PM
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Smoothtrigger
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Maybe.....maybe not.
If I went whole hog with a SEB using a 3 inch slider plate, or switched to a one piece rest, then an improvement would be likely.

Then the next step would be to use a tuner, and have the action installed into a benchrest stock.

But what would be the fun it that.

But a better result for sure would be possible with less wind, and/or if I had used wind flags along with some compensation.
However, I don't think many of your posters are doing any of that, which is why I just waited the wind out, and kept aiming and shooting at that red dot.

Last edited by Smoothtrigger; 07-20-2019 at 02:01 PM.
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  #767  
Old 07-20-2019, 05:23 PM
jaia
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Y'er right Smooth.
It'd be like shooting from a fixture in a test tunnel.
No skill at all, eh?

Raining this afternoon, cleaning and inspecting the toys.
Always a pain clearing the firing pin channel of GSR to ensure full strikes.
Only thing that gets the job done is a blast of carb cleaner and then blow it dry
with compressed air. Scrubbing the carbon ring out of the chamber is easier.
More diameter to work in. Better view of the area to be worked on.
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  #768  
Old 07-20-2019, 06:56 PM
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Have you kept track of the smallest 50 shot group, any rifle, any ammo?

I'm going to take a guess ..... "GSR" = Gun Sight Rilfe?

Smooth
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  #769  
Old 07-20-2019, 07:02 PM
jaia
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GSR gun shot residue...blowback from powder primer ignition.


Best 50 shot group so far was from Sod Farmer, full custom rig with lot tested Eley Match.

https://www.rimfirecentral.com/forum...&postcount=646

Last delivery arrived. Federal, CCI, Sellier and Bellot, Remington to finish out list.
All the remaining 22lr to chronograph and see what happens at 200 yards.
Then I'll need to find something else to keep me occupied.


Probably 200 yards, 10 shots for score.
A box would let me shoot 5 targets.
Good thing I know what rimfire ammo to use.

Last edited by jaia; 07-20-2019 at 07:18 PM.
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  #770  
Old 07-21-2019, 02:49 PM
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One thing that this project has taught me, in fact made it difficult to ignore,
inspect y'er rimfire ammo very closely, before blaming the results on the rifle,
or the wind or lack of skill on our part. Too many of those strays and fliers
are due to poorly made cartridges....



Look at the flaws on those cartridges...do you really think they'll fly predictable trajectories?

I don't...and they didn't!
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  #771  
Old 07-21-2019, 02:56 PM
jaia
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Federal Game-Shok 38 grain cphp 22lr rated 1260 fps

455 Varmint, Lilja, Sinclair





Bulk Hi-V 22lr in a tray.
2 fail to fire, extracted, rotate 120, bang on the second try.
1 would not chamber, out of spec bullet diameter.
Results match the visible cartridge defects.
Poor quality ammo produces poor quality results.

Last edited by jaia; 07-21-2019 at 02:59 PM.
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  #772  
Old 07-22-2019, 07:51 AM
jaia
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Federal Premium Hunter Match 40 grain 22lr rated 1200 fps

455 Varmint, Lilja, Sinclair



Checking the cartridges showed dinged, dented, scratched bullets
irregular shaped drive bands, canted seating...not match quality.
The strays that showed up confirmed the problems found during the visual inspection.
ES nowhere near that needed for serious competition use.

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  #773  
Old 07-23-2019, 08:00 AM
jaia
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Sellier & Bellot 38 grain hollow point 22lr rated 1230 fps

455 Varmint, Lilja, Sinclair





108 fps ES, extremely visible differences in the cartridges
no surprise when all those strays showed up.
Short range hunting/plinking ammo.
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  #774  
Old 07-24-2019, 07:28 AM
jaia
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CCI 40 grain Small Game Bullet flat nose rated 1235 fps

455 Varmint, Lilja, Sinclair





ES of 37 fps is very decent for CCI.
But the cartridges still show dents, dings and sloppy drive bands.
What should have been a pretty decent group, opened up due to bullet imperfections.
When the bullets are all different, the trajectories are too.

7 inches of spread at 200 yards
2.3 inches at 100, 0.75 at 50 yards
1/4 inch at 25 yards

Last edited by jaia; 07-24-2019 at 07:41 AM.
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  #775  
Old 07-27-2019, 11:33 AM
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Attempted to shoot Winchester made Hi-V 22lr this morning.
3 different boxes, none of which would chamber in the Lilja.
All intended for use in a Sporter cut chamber.
Visible inspection showed typical lack of quality control.
Dents, dings, chips, tilted bullet seating, oh well...send them with my semiauto pistol.



Winchester Varmint HE 37 grain 22lr rated 1435 fps

Buckmark Varmint 10 inch barrel and Burris EER scope on heavy bag

Pulled out a couple for inspection...what the heck?
Pulled out some more....



Dumped the whole box



None would chamber in the 455 Lilja barrel
Almost all had that extra crimp in the middle of the brass.

Good thing the Buckmark is chambered a bit looser.
3 fail to fires that went bang on the second try.
1 would not fire, after 5 tries I gave up.

1312 fps high
1258 avg
1174 low

add another 100 fps to equal the mv of a 20 inch barrel



At least they would ping the 14 inch diameter steel with the pistol at 200 yards....most of the time.

Last edited by jaia; 07-27-2019 at 01:57 PM.
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  #776  
Old 07-27-2019, 02:02 PM
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Remington Viper 36 grain 22lr rated 1410 fps

455 Varmint, Lilja, Sinclair

Not the best looking cartridges...pretty lame actually...results not a surprise.





ooopsie, 1 case rupture, 2 ftf that went bang on the second try.

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  #777  
Old 07-28-2019, 08:17 AM
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Quote:
Originally Posted by jaia View Post
Sellier & Bellot 38 grain hollow point 22lr rated 1230 fps

455 Varmint, Lilja, Sinclair





108 fps ES, extremely visible differences in the cartridges
no surprise when all those strays showed up.
Short range hunting/plinking ammo.




Hey jaia, interestingly, those S&B cartridges appear to have a "dimple" in the case head, reminiscent of the old Federal UM-1 UltraMatch? Too bad it (the dimple) didn't work out too good on the S&B rounds... 108 fps ES?? Yikes
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  #778  
Old 07-28-2019, 08:40 AM
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Nope, the dimple doesn't help when so many visible defects get past quality control.
There's a heavy layer of lubricant over the bullet nose, but dents, dings and uneven drive bands
were still visible through it. Toss in the MV spread and you get all that vertical
to accompany the defect caused trajectory spread.


I've become very concientious about inspecting the cartridges before chambering.
When you see irregularities before you send them, then see the irregular results,
not difficult to make the connection between lack of ammo quality and lack of accuracy.

Last edited by jaia; 07-28-2019 at 10:51 AM.
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  #779  
Old 07-28-2019, 11:06 AM
jaia
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Winchester Super X Super Speed 37 grain CPHP rated 1330 fps

Buckmark Varmint 10 inch barrel, Burris EER Scope, heavy bag



Won't fit the Lilja match chamber, so Buckmark pistol at 200 yards.
Add 100 fps to chrony numbers for approximate results from a 20 inch barrel.



Some of that spread is my lack of skill with a pistol,
some is due to many visible cartridge defects,
some is mv spread.

4 fail to fires, all went bang on the second try.
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  #780  
Old 07-28-2019, 11:19 AM
jaia
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CCI Velocitor 40 grain CP 22lr rated 1435 fps

455 Varmint, Lilja, Sinclair




As the picture shows, visible cartridge defects.
Dents, dings, differences in bullet seating and drive bands.




That stray, way to the left, came from a dinged up round.
Visibly more dented than the previous few.
No surprise when it hit away from all the rest.
127 fps ES explains the vertical spread.

Last edited by jaia; 07-28-2019 at 11:21 AM.
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