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  #46  
Old 07-11-2018, 01:52 PM
CamP

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I do struggle a bit with old eyes. My post and blade days are history, but i can still function okay with peep sights when i wear 1/2 power reading glasses. That being said, things were getting pretty fuzzy by the end of that box of ammo.

Last edited by CamP; 07-11-2018 at 03:36 PM.
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  #47  
Old 07-15-2018, 11:14 AM
jaia
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Hey, don't be looking at me that way....it wasn't in my stash.
It came out of cuz's pistol bag. I asked if he was going to use 'em, was told to take 'em.

Oh the horror....oh the shame...oh the ignominy,
oh the entertainment of seeing what will happen at 200 yards.

I wonder if I have a big enough chunk of cardboard?



Wind from the WNW, my 4, at 3 to 7 mph.
90 degrees F, muggy and buggy. Skeeters are so annoying.
CZ 455 Varmint, Lilja sporter barrel, Mueller 8-32x44 atop a 25 moa rail.
40 grain Remington Golden Bullets at 200 yards, minimal mirage.
Box MV labeled 1255 fps.



Started out by adjusting the scope to fit the ammo and conditions.
Aiming at the top left notch of the ear of the steel,
adjusted until 2 of 3 shots punched the center flapper.



Then swung over to the sight dot and fired for effect

Low mv 1200 fps, Hi 1287, Average 1236 for 50 shots

10 inches of vertical, 8 inches of horizontal



The golden bullets weren't all that bad.
With the 1/2-1/3 rule, at 100 yards 3-1/2 inches of spread.
At 50 yards 1-1/4 inch of spread, at 25 yards 3/8 inch of spread.
Still more than adequate for popping rabbits or tree rats back in the palmettos and pines.

I think next trip I'll send some 22wmr.

Last edited by jaia; 01-13-2020 at 07:37 AM.
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  #48  
Old 07-21-2018, 10:09 AM
jaia
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West wind this morning at 4 to 8 mph, my 5 o'clock
90 degrees F, 100% humidity, CCI 30 GR Vmax 22 wmr




The 455 Stubby, new Feddersen 16.5 inch threaded 22wmr barrel



Looking at the target at 200 yards



What the chronograph recorded
Ballistic calculator says vertical should be 5.81 inches from those numbers



and the group of 50



5-3/4 inches of vertical, 7 inches of horizontal
Not a surprise with CCI 22 wmr varminting ammo.

Apply the half-third rule for rimfire

200 yards produces 7 inches
100 yards will show 2-1/3 inches
50 yards and 3/4 inch
25 yards for 1/4 inch.

Last edited by jaia; 01-13-2020 at 07:47 AM.
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  #49  
Old 07-21-2018, 09:18 PM
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flylo
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Just found this. Try some Aguila std 40 rd lead, just makes subsonic but not coated. Has the same POI as GECO so I mix them. We've had so much rain the hayfield is higher than the 200 yard range targets so we cut thru the woods to 300 yards & so far are just shooting a 5"x7" rect plate & a 6" round gong. Will add cow bells & 3 & 4" spinners. Will give it a try when it quits raining.
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  #50  
Old 07-22-2018, 02:15 PM
jaia
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CCI 40 gr JHP was this mornings entertainment.
WSW wind at 7 to 10 mph, swinging from my 4 to my 6
455 Feddersen Varmint on heavy bags again.




Ballistic calculator shows 6.2 inches of vertical spread

The target with 50 shots at 200 yards
The real world produced 6.5 inches of vertical, 6.75 inches of horizontal.
Swinging tailwind purely kicks my butt.
Can't get a clean read of wind conditions downrange due to turbulence.



Last edited by jaia; 07-22-2018 at 08:07 PM.
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  #51  
Old 07-27-2018, 10:39 AM
jaia
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455 Feddersen stubby, Hornady 30 gr Vmax 22wmr mv labeled 2200 fps
Tailwind at 6 to 10 mph swinging from my 8 to my 4 made it interesting,
as did the weak round that dropped in so much lower than the rest.
The box may be labeled Hornady but it's manufactured by CCI, and it shows.

Ballistic calculator expects 12 inches of vertical spread,
10 inches of horizontal at 200 yards.



9.5 inches of vertical, 8.75 inches of horizontal



The weak round impacted just above the 5.5 inch mark on the horizontal ruler.
Audibly weak round compared to the others.

Last edited by jaia; 07-27-2018 at 10:57 AM.
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  #52  
Old 07-28-2018, 10:41 AM
jaia
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CCI A17 17 grain ballistic tips at 200 yards
Box is labeled 2650 fps
455 barrel block with set trigger on the f-class bipod and bags



Winds from the west to southwest at 2 to 5 mph



4 inches of vertical, 2 inches of horizontal
the best results on target so far

Ballistic calculator figures 3.1 inches of vertical due to mv spread
and 1.6 inches of horizontal due to wind

4 inches at 200 yards
1.3 inches at 100 yards
0.4 inches at 50 yards
0.16 inches at 25 yards

Last edited by jaia; 07-28-2018 at 03:53 PM.
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  #53  
Old 07-29-2018, 07:04 AM
jsteurrys
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Quote:
Originally Posted by jaia View Post
CCI A17 17 grain ballistic tips at 200 yards
Box is labeled 2650 fps
455 barrel block with set trigger on the f-class bipod and bags



Winds from the west to southwest at 2 to 5 mph



4 inches of vertical, 2 inches of horizontal
the best results on target so far

Ballistic calculator figures 3.1 inches of vertical due to mv spread
and 1.6 inches of horizontal due to wind

4 inches at 200 yards
1.3 inches at 100 yards
0.4 inches at 50 yards
0.16 inches at 25 yards
Impressive. Your calculated results mimic my real world results at 50 and 100 yards. My one CZ 455 American likes this round.
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  #54  
Old 07-29-2018, 07:27 AM
jaia
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The half-third rule works.
I've been working with the chronograph for three years now.
Every trip to the range, the chrony gets set out front.
I have target results and chronograph numbers for 25, 50, 100 and 200 yards.
Group sizes and chronograph results compared to ballistic calculator predictions.
It was easy to see the the correlation between distance to target and trajectory spread.
As a result, I rarely shoot at less than 200 yards when at the range.
I can calculate an accurate target result at the shorter distances from my 200 yard targets.
A side benefit, the 200 yard range is never crowded.
Few are willing to make the walk down and back to hang targets.
As it happens I need the exercise.

Last edited by jaia; 07-29-2018 at 07:31 AM.
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  #55  
Old 07-29-2018, 12:48 PM
jaia
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I was going to test the Winchester X 22lr, but it won't fit the chamber on the Lilja.
EPS match chamber is too tight to allow the Winchester 22lr brass to seat.

So I ran another box of CCI SV from another lot.
Rated 1070 fps on the box, chronied 1092 hi, 1058 avg, 1019 low mv's.
Vertical spread on target is 10.5 inches, horizontal is 6 inches.
Wind E to SE at 5 to 10 mph

455 Varmint Lilja barrel, heavy bags





Ballistic calculator comes up with 8.8 inches of vertical and 4.9 inches of horizontal due to wind.

half-third results under the same conditions
10.5 inches at 200 yards
3.5 inches at 100 yards
1.2 inches at 50 yards
0.4 inches at 25 yards

Last edited by jaia; 07-29-2018 at 12:56 PM.
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  #56  
Old 07-29-2018, 03:44 PM
hankh
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jaia, Howdy;

Interesting project you've got goin. At the beginning you said you were placeing your
sighting mark about 10" higher then you anticipated your poi, yet in several including
the most recent I spy a poa (I calls'em paper a%%holes), right in the middle of the
vertical although off to the Left of the group whatzzz up??? other curious mind here.

hank
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  #57  
Old 07-29-2018, 04:06 PM
jaia
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Mr. H, I tried the dial up and the dial left and the dial right,
but the ammo and wind doesn't care which way I dial
they choose to go their own way no matter what I try.
I figure as long as all the shots stay on the backer
and the sight dot stays stuck, I'm doing ok.
Wait for my next trip. My sight point will be 41 inches above the backer.

Marlin 60 with a 3-9x32 scope zeroed at 50 yards.
41 inches is the holdover for a 1300 fps 40 gr 22lr.

Hank, ya think the folks that claim "all day long if they do their part" appreciate this thread?

I'm doing my part, but wind and ammo quality are kicking my adze.

Last edited by jaia; 07-29-2018 at 04:23 PM.
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  #58  
Old 07-29-2018, 04:59 PM
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I have been around the shooting games for long enough to know what you are doing is way legit and should put some tales to rest.
But it wont....oh well....we know.
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  #59  
Old 07-30-2018, 09:27 AM
jaia
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50 shots at 200 yards is about as good as it gets for rimfire testing.
Ammo quality is everything at 200 yards.
1 fps difference between shots, with standard velocity 22lr, produces 1/10th inch of vertical spread on target.
I hear claims of all day long at 200 yards and ask what brand of ammunition and size of target.
If they're shooting 14 inch steel plates I can believe them.
But if shooting at 4 inch or 2 inch plates, there is no all day long, not with rimfire.
As long as the laws of physics are enforced, then time of flight, wind and gravity prevent "all day long".
I can't even do 50 shots without a few lower quality cartridges or stray gusts ruining results.
Off the heavy bags sighting a 1/2 inch diameter dot, watching the crosshairs during follow through,
I know it's not me and I know it's not my Lilja barreled rifles. It's ammo quality and wind.

Last edited by jaia; 07-30-2018 at 10:28 AM.
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  #60  
Old 07-31-2018, 08:41 PM
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The hayfield has overgrown my 200 yard but maybe can get someone on a ladder if not I'll do it at 300 when my friend gets well & can shoot & we have a good day. I've held off adjusting the scope to 300 just for this by using Kentucky windage.
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