The main purpose of my personal m4 is home defense, but I have also taken it, and likely will in the future, predator calling. It wears a Primary Arms Micro on it, and I really dig the sight. I had it sighted in at 100, but got to thinking that I will not likely shoot that far with the rifle in its main purpose. I then sighted it in at 50 and this seems like a much better set up.
At HD distances (10 yards max in most homes) the sight height offset is going to be more of a factor than the range you're zeroed at. You're going to be holding 2ish" high regardless of where your zero is. No practical zero is going to compensate for that.
I'd zero for whatever range your predator hunting needs and then deal with the inevitable sight height offset.
"Holding at the top of a 3" circle will place the round in the lower 1/3 of the circle at 3 yards, and in the upper 1/3 at 70 yards. Holding in the upper 1/3 of the 3" circle (1 inch high) will place shots within the 3" circle from 30 yards to around 200 yards (though most shooter/weapon/ammo combinations will not be able to maintain that level of precision past 75 yards or so). "
50 yards dead on, its about 1.5 high at 100 with 55's. Just remember everything is low close up, you got to shoot the rifle at all distances and understand it.
At HD distances (10 yards max in most homes) the sight height offset is going to be more of a factor than the range you're zeroed at. You're going to be holding 2ish" high regardless of where your zero is. No practical zero is going to compensate for that.
I'd zero for whatever range your predator hunting needs and then deal with the inevitable sight height offset.
This, plus the fact 2 inches won't matter at all ever in HD situations....and I doubt anyone would even remember to aim much at HD room defense situations.
Of course unless your rooms are in a multi million dollar house sized rooms. LOL
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
I have an EOTech on my HD AR, and a scope on the rifle I use for hunting. They do different things, and I want different sights on them.
Ditto, I've got a 20" heavy barrel with a 3.5-10 Leupold that i 99.99% of the time I take predator calling. I enjoyed carrying the m4, ill likely do it again.
At HD distances (10 yards max in most homes) the sight height offset is going to be more of a factor than the range you're zeroed at. You're going to be holding 2ish" high regardless of where your zero is. No practical zero is going to compensate for that.
I'd zero for whatever range your predator hunting needs and then deal with the inevitable sight height offset.
This.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
This, plus the fact 2 inches won't matter at all ever in HD situations....and I doubt anyone would even remember to aim much at HD room defense situations.
Not only do I disagree with the above, but it is flat incorrect.
1). Guns, even 5.56mm, aren't death rays and still require proper shot placement. Lung shots, even with good 5.56, may or may not have the effect you need, even then HIGH center chest is where we should be to have an effect on the heart, spine, and/or great blood vessels- to say nothing of effective head shots. The heart is the size of a clinched fist.... 2 inches matters.
2). Any one that has been to a real training course and practices correctly at all- will use their sights if using an Aimpoint. No question. If they don't, they seriously need to reevaluate what they are doing.
50/200 for both BUIS and dot, lower 1/3rd cw mount, is my fav. KAC 50/200 200-600 micro flips track, and holdover for the dot when needed is my SOP.
�I've never met a genius. A genius to me is someone who does well at something he hates. Anybody can do well at something he loves -- it's just a question of finding the subject.�
The thing with the 50/200 is you have to hold over and under from zero to 200. The unique thing about zeroing at 100 is the bullet never rises above the line of sight.
Being a red dot is at its best up close to medium range all I have to remember is hold over, hold on and hold over. I would not use a red dot on a coyote past 150 yards so why sight in for a useable range of 300 that increases hold over and introduces hold under at 100?
This, plus the fact 2 inches won't matter at all ever in HD situations....and I doubt anyone would even remember to aim much at HD room defense situations.
Not only do I disagree with the above, but it is flat incorrect.
1). Guns, even 5.56mm, aren't death rays and still require proper shot placement. Lung shots, even with good 5.56, may or may not have the effect you need, even then HIGH center chest is where we should be to have an effect on the heart, spine, and/or great blood vessels- to say nothing of effective head shots. The heart is the size of a clinched fist.... 2 inches matters.
2). Any one that has been to a real training course and practices correctly at all- will use their sights if using an Aimpoint. No question. If they don't, they seriously need to reevaluate what they are doing.
I use irons and I only see a blur in room distance targets. I have no problem making center hits. I"m not striving for all in the heart. I run the other way, I'd just as soon put as many bullets in as many vitals as I can.
YMMV, but sight height has never been an issue. Not even in IDPA matches, I still don't loose points due to sight height.
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
Jimmy, I can't explain Travis' results as they differed from mine. Properly sighted in at 100 yards, my 25, 50 and 75yard targets are low where Travis shows high for his 100 meter zero. I just haven't had this happen.
Also, no one is going to shoot that precise with a red dot to be able to zero at 300 meters with a red dot on a blank silhouette. Most red dot groups from 100 yards run 3" or so.
The 25/300 zero is nothing new and has had plenty of problems for years, don't know why it's supposed to work now.
I'd suggest shooting all 3 and see which works for you.
![[Linked Image]](http://i243.photobucket.com/albums/ff205/Jimmyp50/TravisHaleyzero%20comparison_zpsktbgryh6.jpg)