AR-15; the progeny of genius.

[spin_drift]

@Xl Is that a mil-spec bolt carrier?

[xl_target]

Absolutley, spin_drift!
Almost all the parts on the rifle are mil-spec.
The exceptions are some of the externals; the buttstock, pistol grip, hand guard ( I have the mil-spec hand guard and pistol grip), disconnector, red dot and rear sight.
The M4 has a 14.5" barrel. For legal reasons, my barrel is 16".

[TC]

XL,
Thanks for sharing the information on surplus ammo. I never heard of the Independence till now. Always thought IMI had just one or two brands that adhere to Nato specs.
May be they use these for training cadets or to test new rifles. I believe besides the Galil they also assemble AR variants at IMI.


TC

[Kittu]

thanks xl
for sharing video rest is said by TC dada thanks

[TC]

XL, missed out on the video yesterday as I had to rush to work. But the Sunday morning pleasure was entirely mine.
Thats a great rifle. I want to fire it ..... RIGHT NOW

TC

[xl_target]

XL, missed out on the video yesterday as I had to rush to work. But the Sunday morning pleasure was entirely mine.
Thats a great rifle. I want to fire it ..... RIGHT NOW

TC

TC,
Come on over anytime.
"We'll leave the light on for you"*.

I went to the range today; spent five hours there. Had a blast!
It was an absolutely gorgeous day today. It was about 62 deg. F (16.7 C). After this brutal winter, this T-shirt weather felt sooooo good!
You could run out to the 100 yard berm, hang your target and run back and not break a sweat.

I introduced my co-worker to "Dominika"; my long legged Polish gal (Wifama .22 LR Polish training rifle). The only reason I took her with me was to use her as a spotting scope (for the AR) as it has a decent scope (4.5 X 14). He fell in love and shot that thing half the afternoon. I also introduced him to the GI sling and "Marjette"; my old 10/22. Marjette was given to me, 30 years ago, by her namesake. He shot that for the rest of the afternoon.

I shot the AR some more. This time I used some Turkish ammo that I found at Walmart.
The heavier 62 grain bullets seemed to stabilize better than the 55 grain Independence ammo I used previously.
I'm reasonably pleased with the rifle's performance. Consider the fact that I am using some unknown ammo and that the rifle has had only about 100 rounds through it.
I'm positive that once I start reloading for it and find the right bullet/powder combination, the rifle will do better. Currently I'm just collecting brass. When I reach a couple of thousand empties, I'll start working on the loads.


25 yards off front and rear sand bags. The point of aim was the circle in the center of the diamond.


100 yards with fore end on the range bag as my co-worker co-opted the sand bags for Dominika.
The point of aim was the orange dot in the center of the target.

* "We'll leave the light on for you"
(see Advertising Campaign)

[ckkalyan]

Many thanks xl_target for sharing the range report, ammo information and the video...very imformative!

[TC]

XL,
This is one accurate rifle. Save some Turkish ammo for me

Excellent report as always.

TC

[xl_target]

The zeroing scheme (aka RIBZ or the Revised Improved Battlesight Zero)

You might have noticed that the photos above have the groups not centered on the Bullsye.
Because of the peculiarities of the AR-15; namely the sights being a good 2.5+ inches above the barrel, I did not set a 100 yard zero.
The most common zeroing method in use is called the 50-200 (50 yard - 200 yard) zero. Sighting it in to hit a Bullseye dead center at 50 yards, puts you spot on at about 220 yards, with the bullet not going more than two inches above the line of sight. At 25 yards you are about 1.2 inches below the Bullseye and at 100 yards you are about two inches above the bullseye. This allows you to hit most targets out to about 250 yards by holding dead on (assuming your target is a little over two inches high). A better name for this scheme might be the 50 yards-200 meter sighting scheme but lets avoid mixing our units of measurement and just call it 200 yards for simplicity's sake.

This is what a typical plot of the bullet distance over the line of sight vs the distance looks like.


the 50-200 zero


Not only that, this scheme makes for similar trajectories for the most popularly available 5.56 x 45 cartridge combinations; the M193 (55 gr. bullet) and M855 (62 gr. bullet).
images and info from HERE

The above zeroing scheme is setup for use with the supplied iron sights on the Govt. Issue rifles using the most frequently issued ammo. Nikon, among other manufacturers has come up with reticles on their popular P223 line of scopes that takes advantage of this scheme. Nikon makes a very compact 3X scope with a "carbine reticle", which when zeroed at 200 yards will allow you to use the hash marks on the reticle to shoot to point of aim at 400 yards and 600 yards. Of course, with a 3X scope you aren't going to be very precise at 600 yards but then you shouldn't be using a carbine barrel and setup to target shoot at that distance.
They also designed a set of mounts to put the scope at the optimal height for an AR-15.

The scope and mounts:

Info HERE

This is what the reticle looks like:


I took the red dot off my rifle as it had limited utility at the range, with my aging eyes, at distances over 50 yards. I installed the Nikon P223 scope and mounts on my rifle and was surprised at the clarity of the little (it is little) scope. I had no issues sighting in on the bull at 100 yards.


Something I found on Youtube; a review of the Nikon P223 scope

[youtube][/youtube]

Photos coming........

[TC]

WOW... keep them coming XL.... Its the best AR porn I can watch on a hot summer afternoon in Kolkata

TC

PS: That's a fantastic scope. And too expensive in this part of the world

[Kittu]

XL,
This is one accurate rifle. Save some Turkish ammo for me

Excellent report as always.

TC

Dada
are you serius?.if you are then go aftere xl have couple of thousand brass and learn how to reload those couple of thousand brass.load your brass yourself and enjoy

[Baljit]

Very nice XL thanks for sharing, this coming Friday I'll post all of the pictures when I built my lower receiver.



Baljit

[xl_target]

WOW... keep them coming XL.... Its the best AR porn I can watch on a hot summer afternoon in Kolkata

TC

PS: That's a fantastic scope. And too expensive in this part of the world

You wanted AR porn? Why didn't you say so?

[xl_target]

Very nice XL thanks for sharing, this coming Friday I'll post all of the pictures when I built my lower receiver.



Baljit

Looking forward to it, Baljit.

[TC]

WOW... keep them coming XL.... Its the best AR porn I can watch on a hot summer afternoon in Kolkata

TC

PS: That's a fantastic scope. And too expensive in this part of the world

You wanted AR porn? Why didn't you say so?

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Ohhh..... this is too good

Thanks XL.... wonderful porn



TC

Very nice XL thanks for sharing, this coming Friday I'll post all of the pictures when I built my lower receiver.



Baljit

Aye Aye Sir,

TC