100 Yard Shooting [no scope]

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Depends on what you are trying to achieve. When I start shooting farther out than my normal 25-30 yards, then I start using my 3x magnifier on a flip to side mount. I personally prefer shooting with a red dot, as I can acquire the target quicker... plus like I said, I prefer shooting inside 50 yards.

I do have a scope on my much more accurate bolt gun.
 
Yes. Tin cans and clay pigeons are good targets at that distance with just a red dot.
 
You can shoot out to a mile with iron sights but what are
you gonna hit?
I have a Eotech 512 red dot scope on a Rock River AR
and can keep a 55 grain FMJ inside a skoal can at 120 yards.
It has a 1 MOA dot no magnification.
I couldn't come close to that with ANY iron sights.
I have a 3x9 on another Colt AR and you can cut
those groups above in half at 9 power and a good rest.
Just depends on what you think you will be using the
rifle the most for. But if you get a small enough and
accurate enough red dot you can do great things with
a good rest and a good barrel.

Chuck
 
In my 20's I would shoot 100 yards with my S&W 29-2 8-3/8" barrel revolver.
No scope, just iron sights and resting on sandbags.
Now at 55, I limit my handguns to 25 yards but shoot my Colt AR15 out to 100 yards
with iron sights or Aimpoint PRO red dot.
 
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With "Young eyes" iron sights will work out to 100 yards with no problem, if you have the time along with steady nerves and breathing.

A Red Dot comes in handy for fast shooting action sports but lots of practice is needed.
I have yet to buy one, old school, don't you know.
 
We shot with iron sights in Vietnam on our M-16's and they worked fine. Of course we also had excellent eyesight seeing that I was old at 25 years old when I was there and most of the others were 18 and 19 years old. As I aged to my now 72 years old a 3x9 scope is a huge benefit in my shooting when I'm hunting.
 
Thanks for the comments. Just to clarify, I'm talking about shooting my M&P 15-22 with a TRS-25 red dot. To start I just want to zero at 50 yards and hit paper at 100. I have no illusions as I'm 68 with "less than perfect" eyesight. I have access to an AR 3-12x40 scope but have never mounted it.
 
Just curious. With your stated age & poor eyesight, why shoot such a gun at 100 yds? That is pushing the envelope on what a 22lr can do, especially with a 3 MOA gun such as the 15-22. Sure it can be shot at that range but just not very accurately, especially for us older guys with failing eyesight & less than steady hands.

Also IMO that is quite a long zero distance but maybe it is proper for shooting at that range. I'm not real familiar with the ballistics of the 22lr as I personally don't shoot out that far. Heck, even my ARs are zeroed at 30 yards. Older I get, the less sniper I have in me. :)

TRS-25 is a fine optic & I have several... one of which is on my spare 15-22. I have a couple of the 3x magnifiers with quick attach, flip to side mounts, that I use with all my red dots. When not needed, I simply remove them or flip to the side. They are helpful for me when I need to check my zero. Gives me enough magnification to stay on target but still allows me to shoot with the red dot.

In the pic below, the 300 blackout is using a magnifier. My 15-22 optic is far enough forward to allow one to quickly attach.

both-guns.jpg
 
Remember a red dot sight's "red dot" can cover 2-4 some even 6 inches at 100yds...... so don't expect MOA groups with a red dot sight......


My goal is to keep them "under the dot" at that range.

MOA groups at 100yds with a .22 plan on a 12-20X scope IMHO



Redneck ..... IIRC there is a school of thought that a AR .223 zeroed at 30 yds. is GTG plus or minus 1-2" out to 200 yds.
 
Depends largely on your eyes. I used to shoot a Dirty Harry special with just the iron sights at 100-125 yards with some regularity with decent success. That was thirty years ago. I can still shoot an M-1 carbine pretty well with milspec sights out to 250 yards, but I shoot it a lot better with a red dot. For me a scope is slightly better but much slower.
 
I bought my son a 15-22 for his birthday. And my eyes have seen better days too. I like the ghost ring though. I can still do it. Though I won't let him put anything on it yet, I really could use some help.
The problem I have with the red dot is that the dot is rather big. It doesn't affect shooting inside 100 yards. But we do a fair ammount out to 350 yards with his. When you look through a red dot at 300 yards, the dot covers a lot of area.
For universal application, I would pick a scope over the red dot any day. For just playing around, it's about what fits your need. They are fun in the right venue.
 
The size of the dot is a determining factor as to accuracy at a certain yardage. At 100 yds a 1 moa dot will cover one inch of the target. A 4 moa dot will cover 4 inches at 100 yds. Smaller is better, but for some, that 1 moa dot is pretty small.
 
The red dot sights will come with different size dots. A 6.5 MOA dot will cover about 6.5 inches at 100 yards. Sounds fine, but if you start aiming at 3" targets or Coke cans, you'll see how difficult it is. You'll likely need a fine dot or a scope with a crosshair.
 
I have no illusions. I just want to have fun, and the outdoor range I have access to is 100 yards deep. I'll probably try both the TRS-25 and the scope. Again, just for fun. Thanks for the feedback... :)
 
On my S&W 15 22LR and my Ruger 10/22 I zero it at 50 yards with the 1.75x4X scope that I have on them. They both shoot in the black with the Ruger 10/22 groups being about 1/2 the size of the S&W 15-22. I consider the S&W 15-22 to be plinking rifle and the Ruger 10/22 to be a better plinking rifle. Both are zero of man at 50 yards and while not my first choice but they would still work for self defense.
 
Remember a red dot sight's "red dot" can cover 2-4 some even 6 inches at 100yds...... so don't expect MOA groups with a red dot sight......


My goal is to keep them "under the dot" at that range.

MOA groups at 100yds with a .22 plan on a 12-20X scope IMHO



Redneck ..... IIRC there is a school of thought that a AR .223 zeroed at 30 yds. is GTG plus or minus 1-2" out to 200 yds.

I agree with the above.
 
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