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Old Ranger
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Posted: March 09 2018 at 9:04pm | IP Logged Quote Old Ranger

Something odd. New rear sight arrived for the AR15. Solid
and well executed all metal design identical to the
windage assembly of the standard M4 sight. Fit was
perfect. Already aligned in "Mechanical Zero".

15m quick zero from a rest on the bench. 7" left! Huh?!
Tried again. Right next to the first. Moved sight
12 clicks to the right. Was still 5" left. Ended up with
MAX right adjustment and still 4" left!

Went inside and swapped sights with the carry handle.
Tried again. 7" left again! What??!! Maxed that sight
right and still 4" left! Cease fire. Save the ammo.
Cleaned the weapon and searched for cause. Found none.
Nada. Zip....

Question: this ever occur with anyone else? Suddenly all
long guns shooting left? Or have I been afflicted with
some stupid liberal disease that causes me to go left?

Edit: This is only happening with long guns. I am dead on
zero hotshot perfect with handguns. Just all rifles are
suddenly shooting extreme left!

Edited by Old Ranger on March 09 2018 at 9:08pm


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hdwhit
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Posted: March 09 2018 at 11:41pm | IP Logged Quote hdwhit

Old Ranger wrote:

"Question: this ever occur with anyone else? Suddenly all
long guns shooting left? Or have I been afflicted with
some stupid liberal disease that causes me to go left?"

Actually, it's a conservative disease.

Have you tried mounting the rear sight further back on the receiver? I had the same problem and simply moving the sight back a couple of notches on the picatinny rail completely solved the problem. Of course, the sight was touching my nose so I had to get used to that when shooting so that I didn't get a bloody nose.
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RT58
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Posted: March 10 2018 at 7:25am | IP Logged Quote RT58

At first it sounded like you'd need to shim the rear sight, until you mentioned the handle sight did the same thing...

Now it's sounding like there might be a problem with the front sight being off.
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Old Ranger
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Posted: March 10 2018 at 7:32am | IP Logged Quote Old Ranger

I'm having a difficult time trying to picture the sight
contacting one's nose with a proper cheek weld. However,
being that close would cause the rear peep to disappear
and the charging handle would pummel the cheekbone.
Sorry, that is an unusually unorthodox method of shooting
this weapon.

Sight is in the rearmost location. Same distance as with
the carry handle in place. Yet both had the weapon
hitting unnaturally extreme left.

Sight Radius: 14"
Eye Relief: 6"
Length of pull: 13.5"

Barrel: 16", 1:8" rifling, mfg by Anderson
Ammo: .223Rem, 62gr Hornady FMJ, 22.2gr IMR3031

Resting on semi solid flat rest with no hand support or
use of sling. Left hand support on rear of stock near
shoulder for assistance in elevation.

I have shot from this configuration for decades with
splendid results until the last few days. The same
phenomenon occurred a couple days ago with a .22LR
autoloader rifle with conventional sights. Every round
was 3" to 4" left at short distance too!

I've stopped wearing the VA glasses and my vision is much
sharper and clear without them. And as stated, my
shooting with a pistol is great. I just don't get it.


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RT58
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Posted: March 10 2018 at 7:58am | IP Logged Quote RT58

Wade, When you got your glasses did they mention if you have astigmatism or were even tested for it?
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Old Ranger
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Posted: March 10 2018 at 11:17am | IP Logged Quote Old Ranger

I don't even know what that word means!
But I went outside again to try to see if it was the
weapon or me. First couple of rounds with it centered
mechanically, I got the same thing. 5 in left. Then, I
looked at the front sight thinking about what you had
said. I remember a couple of weeks ago, I had removed the
front sight to do some extensive cleaning and oiling. And
I noticed today that the front sight would lay down
forward rather than backwards. It was originally set up
with it going backwards to lay down when using other
devices. So, I pulled the front sight flipped it 180
degrees and then, reinstalled it and try it again. Bingo!
It was back on track Like It was supposed to only
about 2 clicks for correction. I guess getting old has
its difficulties. They always say the first thing to go
is the memory but I keep forgetting that was the first
thing!

So now I'm back to shooting iron sights again on the 223.
I think perhaps, my difficulties with the 22 Auto loader
was that I was just getting a little Hasty with it and
probably pulling some of my shots. I was going kind of
nuts with the thing shooting cans like a maniac. Not
really my style I'm a One-Shot at a time kind of guy.
So we will mark this one up as case solved.

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RT58
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Posted: March 10 2018 at 12:11pm | IP Logged Quote RT58

Glad you got it figured out.

Astigmatism is a curvature of the eye that makes focusing on certain objects difficult, even though your vision may appear normal overall.
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Rex
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Posted: March 10 2018 at 1:17pm | IP Logged Quote Rex

Think how much fun we'd miss out on if we weren't old, everything would go right!
I had faith in you, any man that can find the only mould in the world that cast bullets that fit my cylinder throats can do anything.
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Old Ranger
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Posted: March 10 2018 at 3:38pm | IP Logged Quote Old Ranger

Rex, you humble me!
Well sorta.

Just had one of those momentary memory laps. Yeah, that's
what it was.... Um... Uh, yeah, that's what it was.

Secretly, and don't let this get around, but I was
watching tv with Wonder Woman playing. Y'all know, the
real one, Linda Carter. When cleaning and oiling the M4
copy I was SERIOUSLY DISTRACTED! It's a wonder how
I even put the weapon back together at all!

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Ham Gunner
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Posted: March 10 2018 at 7:07pm | IP Logged Quote Ham Gunner

My memory is not like it used to be, but even years ago it was easy for me to forget things.

I was working on a load for my Mini-14 back in the early 90's and found a decent 1 3/4 x 5 power Redfield so I decided to switch scopes. Mounted the new scope, but got delayed with finishing up on the load work up. About a month later I had time and took the Mini out to the bench and set up my chronograph to continue where I left off. First shot barely clipped the top of the Chrony but that was all it took. My memory was much younger back then than it is now, but I still forgot that I had not sighted the scope in. I have started to leave myself notes these days.

I am now on my third Chrony. About 10 years ago a gas check took out the read out screen on the second Chrony. Chrony #3 has the remote read out at the bench.

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Buffalogun
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Posted: March 11 2018 at 3:01pm | IP Logged Quote Buffalogun

Old Ranger wrote:
The same phenomenon occurred a couple days ago with a .22LR autoloader rifle with conventional sights. Every round was 3" to 4" left at short distance too!


Did you turn this sight around too? Just when you thought it was safe to go back to the range.


Rick,
I'm on my third chrono too.
The first one succumbed to a 160gr. bullet from my M70 7mm Remag. But, it died quickly and as near as I could make out, it didn't suffer. Like Humpty Dumpty, it couldn't be put back together again!

The second chrono caught a gas check off a somewhat hot .458" bullet from my .45-70. But unlike the first chrono, only one of the sensors was destroyed.

I've learned to be more careful.


Mike

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Old Ranger
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Posted: March 11 2018 at 4:00pm | IP Logged Quote Old Ranger

I have "stupid vision" due to age and diabetes. Added a
hood to the 22. Gave different sighting picture. That's
my analysis.

Yes, was distracted when reassembled the 15. An oops on
my part.

Don't have a chronograph. Shootin near some 60 years and
never got one. Never figured I needed one. And the way
you boys are tearin em up I'm glad I don't have one
either.

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M700
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Posted: March 13 2018 at 5:13am | IP Logged Quote M700

Should we flip the sights around when we set the clocks forward?

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Old Ranger
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Posted: March 13 2018 at 5:44am | IP Logged Quote Old Ranger


Dat's a good one Guy!

Yeah, I'd been putting on, moving, and removing a bunch
of scope stuff so much that I sorta wanted to "wash away
the bad juju" off my weapon. And it was Sat evening and
Wonder Woman was on tv. Linda Carter always distracts me!
And I wasn't paying attention to my weapon when I was
putting the front sight back in place. Seriously, I
just put it on the forward rail atop the gasblock without
a thought. I really feel stupid for such a rookie
mistake. If I were in better shape I'd have myself
run around the parade field at high port a dozen times!
But since I'm a tired old man I'll take some friendly
ribbing from my buds instead.
I did, however, stand in front of the latrine mirror and
cuss at myself in my old Drill Sgt voice for a few
minutes. May not be as effective as running at high port,
but won't cause a coronary either!

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twillis
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Posted: March 13 2018 at 9:34am | IP Logged Quote twillis

You need a scope!

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M700
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Posted: March 13 2018 at 1:20pm | IP Logged Quote M700

twillis wrote:
You need a scope!



Ha!
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Old Ranger
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Posted: March 13 2018 at 4:04pm | IP Logged Quote Old Ranger

Go away!
Leave me alone!
I'm going out in the woods and eat worms!
Scopes got cooties!
My nephew from a former marriage had a neighbor that
knew a guy in Paraguay that caught a deadly illness from
a scope once. He almost died I think. Some details got
lost in the translation but my former nephew swears the
neighbor was pretty much sorta positive on it. It mighta
been he caught something from some woman there, but all
parties swear a scope was involved in this somehow!


I'm taking this hodge-podge pile of scopes to the priest
in town and have them get an exorcism, then bury them
somewhere in Oklahoma!. I'd bury em in Mexico but
Coyotes would dig em up and send em north across the
border!

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Old Ranger
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Posted: March 20 2018 at 2:46pm | IP Logged Quote Old Ranger

Well there's still hope for this grouchy old coot!

Last week I ordered a 5 slot rail attachment that has a
quick release and stands .75" above the rail below it. My
hope was to be in alignment with the iron sights with a
red dot sight on the rail attachment mounted forward on
the receiver rail. It came in Monday. Mounted it and when
I kicked on the dot it was pretty close to the iron.

Today at 25m, I dialed it in. Hitting .75" low. Went
after the 10" iron plate at 100m. Aimed as close to
center as I could. Put 2 for 2, 2" apart centered about
2" above POA. Lots of 2's there huh? But that's
good for 200m zero [my goal] and gives me a better chance
at hogs in the near-dark I have to deal with.

The iron sights both fold down and allow the red dot full
view. I like it. And no, I'll not be going for a
scope, but I can [finally] deal with a red dot and not
get an upset stomach trying to use it!
John, Mike, and several others suggested the Red Dot
thing but I had a bad experience with one and developed a
bad opinion of them. Um..... I got over myself and paid
closer attention to my amigos here.

What's really weird, with the red dot in place, I can
hunker down behind the iron sights and look through the
red dot glass. Then I turned on the R.D. and the dot was
just about right on top of the front sight! Amazing!

So I might use this weapon more often now. It's not going
to replace my beloved M92 357 levergun, but who knows, I
may yet whack a monster hog with it.

Ok, got 20 223 cases tumbling waiting for the 310. Yes, I
load 223 with a 310 tong tool and is 100% fully
functional in an AR15. Yeah, there's some things I still
do that others look at and say "How does he do that?"
But then again, I can't answer my smartypants phone half
the time cuz I don't remember how!

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M700
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Posted: March 20 2018 at 5:28pm | IP Logged Quote M700

Wow! Glad that worked out for you. I used a "red dot" sight of sorts, the EOTech, for years while I was on SWAT. So easy... Put the dot on the target and squeeze!

Nice...

Guy
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Old Ranger
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Posted: March 21 2018 at 8:37am | IP Logged Quote Old Ranger

I know I'm a cranky old coot, but I'm learning some
newfangled things.

I still am amazed how I can flip the iron sights up, turn
on the "dot", and be aiming at the same thing!
Pretty cool.
I'll bet if I clobber the dot gizmo and it croaks, I
could replace it and line the new one up with the iron
sights and be close to zero.

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