[cracked butt]

The AR I currently use for highpower has a removable carry handle. I've only shot reduced range courses so far but, from my calculations, I don't think I have nearly enough elevation adjustment if I wanted to use the rifle in a cross course competition.

Are there ways to make this workable- changing front sight sight adjustments for different ranges, modifications to or a different rear sight/carry handle?

I get the feeling I'd be better off with a new upper, anyone have experience with using removable carry hadle sights at longer ranges?

[Rugerlvr]

I'm guessing that iron sights might be the rule for the competition, but if they aren't, what about just taking it off, and mounting an optic?

If Iron sights are required, (I've never shot an NRA tourney.) There are a variety of A2 sights that have no carry handle.

[cracked butt]

There are a variety of A2 sights that have no carry handle.


I should have specified that I'm shooting Service rifle, I guess any aftermarket with enough adjustment would work if I wanted to shoot Match Rifle.

[BobCat]

Please do not take this as correct advice, it is only something I read on the internet when our 600 yard range was fixing to open and I realized my removable carry handle sight would not have enough elevation.

Apparently there is slot in the elevation screw for a roll pin that keeps someone from unscrewing too far and having the sight come all the way off. If you take out the roll pin, remove the sight, and extend the slot down so it goes all the way to the bottom of the screw (defeating the purpose of the slot and roll pin), you will get enough extra elevation for it to work. Just be aware that too many clicks up and the sight comes off in your hand. This is what I read, it may be wrong.

You can adjust the front post down for 600, instead, but 1) you need the proper little tool, two toothpicks will be too slow; and 2) many people use a front post ground to a chisel edge - so only an integer number of turns (i.e. four clicks at a time) will put the proper face of the post facing you.

I simply broke down and bought an upper, retired my flat-top to 300 yard prone matches, and never tried the screw/slot modification.

Best wishes.

[cracked butt]

Apparently there is slot in the elevation screw for a roll pin that keeps someone from unscrewing too far and having the sight come all the way off. If you take out the roll pin, remove the sight, and extend the slot down so it goes all the way to the bottom of the screw (defeating the purpose of the slot and roll pin), you will get enough extra elevation for it to work. Just be aware that too many clicks up and the sight comes off in your hand. This is what I read, it may be wrong.

Interesting... I'll have to take a look at that.

Wondering out loud.... does the standard A2 sight have a longer threaded shank? If so I wonder if its possible to somehow relieve the bottom of the carry handle (I notice a pin in the bottom) or possibly drill a shallow hole in the upper receiver to give a different sight more clearance?

You can adjust the front post down for 600, instead, but 1) you need the proper little tool, two toothpicks will be too slow; and 2) many people use a front post ground to a chisel edge - so only an integer number of turns (i.e. four clicks at a time) will put the proper face of the post facing you.

I think turning the front sight all the way around clockwise adds a little over 5 minutes of elevation which was oneof my first considerations. I'm wondering if front sight adjustments have similar repeatability as rear sight adjustments though?

[Howard Roark]

BobCat is correct. There is a thread on www.nationalmatch.us (http://www.nationalmatch.us/forums/index.php?showtopic=10444)about this with a picture.

You will have to join to access the forum, it's free. There is a lot of good info there for NRA highpower competition.

[cracked butt]

BobCat is correct. There is a thread on www.nationalmatch.us about this with a picture.

You will have to join to access the forum, it's free. There is a lot of good info there for NRA highpower competition.

I actually just joined that site earlier this morning after seeing a link to it posted on another thread here. Good site- I found a link there to buy Constantine's 'Highpower for Competition...." book and ordered one right away- for about 1/10th the price that Amazon wants for it.:cool:

[cracked butt]

Bingo!

I did some looking on the nationalmatchus site and found a lot of answers to my questions.

[BobCat]

Cool! I used to read a lot there and should have remembered, and suggested you look there in the first place.

I do not mess with my front sight - there is a set screw coming up from the barrel side in the sight base, that keeps it steady. One would need to loosen the set screw to adjust the sight height (say that three times fast).

If my eyes keep on the way they are going, I'll eventually fold and take everyone's advice to go to Match rifle and get rid of the post.

Have a great weekend!

[rhubarb]

For what it's worth, my A2 20" gun shooting 77gr requires 13 MOA increase in elevation when going from 200 to 600 yards.

How much do you figure you need?

[Canuck-IL]

One of RRA's detachable carry handles is 600 yd capable ... supposedly it's even patent pending. I've not heard of any others that claimed that.
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=280
/Bryan

[cracked butt]

One of RRA's detachable carry handles is 600 yd capable ... supposedly it's even patent pending. I've not heard of any others that claimed that.

Yes, that's my third option at this point...

[cracked butt]

update:

I removed the rear sight and cut the stop out of the bottom of the elevation screw with a dremel tool. The entire job from start to finish took me about 15 minutes including the time to get down on my hands and knees to find one of the ball bearings that popped out when I took the sight apart. Now I have tons of elevation to work with.:cool:

Another bonus was that I was able to add a set screw under the front sight. My rifle didn't have the 'F' marked FSB and required the front sight to be turned out quite aways to zero it. the set screw has taken all of the wiggle/play out of the front sight post.