Click on the image above to learn more about the M1 Carbine
|
100 yard zero |
Post Reply 
|
| Author | |
Paul1262 
Grunt 
Joined: Jun 25 2018 Location: North Carolina Status: Offline Points: 151 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: 100 yard zeroPosted: Jul 29 2018 at 1:47pm |
|
I have determined that my front sight is too tall to zero at 100 yards using my adjustable sight 100 yard setting. I'm reluctant to filing the front sight. Does it make sense to begin by trying to zero at 25 yards using each of the adjustable sight settings until a reasonable grouping is achieved? I'm hoping that a 25 yard zero would be a little high at 50 yards and zero again at 100 yards. My ultimate goal is to achieve the greatest accuracy at 100 yards irrespective of the actual adjustable sight setting.
|
|
 |
|
|
bonnie
Recruit 
Joined: Aug 28 2016 Location: N.C. Status: Offline Points: 92 |
Post Options
Thanks(2)
Quote Reply
Posted: Jul 29 2018 at 3:20pm |
|
If your wanting the greatest accuracy at 100 yards zero your really need to do a 100 yard zero.
Filing the front sight is easy.... 1. Go slow, file very little, shoot for zero 2. Go slow, file very little, shoot for zero 3. Go slow, file very little............ Making a small joke but really go slow, file very little ( a couple of smooth file swipes at a time, no more) and shoot for zero. It is easy to get too busy with the file and take off to much front sight. It will be only a very little bit that needs to be removed to get the elevation zero wanted. I take everything I need to the range: A small, clean, smooth-cut triangular file An MTM portable cleaning box http://www.mtmcase-gard.com/products/shooting/gun-cleaning-rmc-1.php Duct tape. Put the carbine in the MTM rack to secure it in place. Duct tape the inside sides of the front sight wings so I don't accidentally scrape them with the file. A couple of smooth swipes with the file (push the file in one direction only) then shoot for zero. Repeat as needed till I have the elevation zero I want. Doesn't take very long at all. Normally 2-3 times. The closer I get to the zero I want it might just be a single swipe with the file at a time between checking for zero. A smear of instant gun blue on top of the front sight blade and I am done. |
|
|
|
|
Paul1262
Grunt
Joined: Jun 25 2018 Location: North Carolina Status: Offline Points: 151 |
Post Options
Thanks(0)
Quote Reply
Posted: Jul 29 2018 at 4:23pm |
|
Bonnie,
Thanks for the information. So you use the 100 yard setting on the rear sight for a 100 yard zero and then just keep filing until better accuracy is achieved. Once the front sight is filed, do you think that accuracy will be achieved at the other yardage settings? Do you think using the M1 carbine 25 yard zero target would be of any use in trying to zero? |
|
|
|
|
floydthecat
Hard Corps 
Joined: Oct 13 2016 Location: Mississippi Status: Offline Points: 2307 |
Post Options
Thanks(0)
Quote Reply
Posted: Jul 29 2018 at 4:40pm |
That is exactly what I have done and I have two carbines that were never filed. I simply jacked-up the adjustable rear to raise the POI on a 25-yard target. I could be wrong here, but I believe the only battle-sight zero required for the carbine is the 25-yard zero? The adjustable rear sight is calibrated in such a way to the mil-spec ammo that zeroing at 25-yards and adjusting the rear sight elevation will place the POI in the desired target area at longer distances without having to rely on hold-over-or-under. I don't plan to take my carbines into combat where I may be engaging targets at longer ranges requiring a sight adjustment. All of my carbine shooting is done at ranges under 100-yards.
|
|
|
|
|
bonnie
Recruit
Joined: Aug 28 2016 Location: N.C. Status: Offline Points: 92 |
Post Options
Thanks(1)
Quote Reply
Posted: Jul 29 2018 at 8:26pm |
|
Yes, a good 100 yard elevation zero with the rear sight set on 100 yards will work well for 200 yards and 300 yards with the corresponding rear sight elevation settings.
Have found the 250 yard elevation mark for a 200 yard target a better elevation setting. The 200 yard mark comes in a little to low. The 300 yard elevation mark is good for 300 yards. I read a lot where people say a carbine is only good to 150 yards max. I am not saying it is a hot round but it is reasonable accurate at 200-300 yards if properly zeroed for the elevation. In my younger days I have shot a few 200 yard CMP M1 Garand matches using a carbine for fun and have done well. Certainly couldn't get past good Garand shooters but could easily out score a lot of the others. A few of them didn't like getting out shot by a carbine at 200 yards. Use a black B27 target at 200-300 yards. It is easy to consistently hold center mass. Find out what you and your carbine can do at distance. Balloons at three hundred yards is also fun with a carbine. All my carbines are zeroed for 100 yards. When I do get a new to me carbine it is not unusual to to find the original front sight already filed too short. Left over from being zeroed with the original rear flip sight and never replaced when the adjustable rear sight was added during rebuild. |
|
|
|
|
Freedom
Recruit
Joined: Mar 01 2018 Location: Maine Status: Offline Points: 31 |
Post Options
Thanks(0)
Quote Reply
Posted: Jul 30 2018 at 8:57am |
|
The Inland I shoot hits bullseye at 100yds with it's milled sight set on 250yds. That's O K with me as I find different brands of ammo can require moving a click up or down. Also I have not tried reloads yet and so I leave my front blade as is. Everyone makes sausage differently, I guess.
|
|
|
|
|
Post Reply
|
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You can vote in polls in this forum |
Topic Options
Paul1262 wrote: