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Posted: 6/21/2016 9:29:39 PM EDT
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So, I've got a 16" mid length BCM upper w/ a 13" KMR handguard. I've heard it said that, for accuracy purposes, it's better to have your front sight fixed to your barrel. My question to you guys is, how much difference does it REALLY make? I'm talking real world numbers here. 1 MOA shift w/ sling tension? 2 MOA? 10 MOA? Is it worth it to get a different upper for dedicated iron sight shooting? I'm asking because planning on taking an Appleseed course here in the next couple months. I really want to learn how to shoot with irons before I invest in a high-end optic. To put things in perspective for y'all, I'm TERRIBLE at shooting rifles w/ irons. At 25 yards, I can ALMOST print better groups with my Ruger Security Six (shooting DA) than I can with my $1300 AR15. Thanks in advance.
Steve |
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Yeah, that sling tension could mess with you at an appleseed. I'm not sure what to tell you. Other than at 25 yards it might not be all that bad....... ???? I guess it just depends on how much tension you're using. Or how consistent you are.
It would not be my first choice in a set up for an appleseed. Although having said that, sling tension on a skinny barrel with a FSB and non free float can be an issue too. The best set up for sling tension is a FSB barrel with a FF barrel. That's what the competitors do. I would just be careful not to torque it too hard and be consistent. And you should be fine. I know they shoot at pretty small targets at an appleseed and your zero may wander a bit more than you want it to. It's hard to tell you how much it's going to move. Too many variables. More that likely it will move some. I think just being aware of it helps you out, because it might not be all that bad. Or you could put an RDS on there before you go. You should learn to shoot the irons. You could get an RDS and slap it on there if it seems like it's moving too much. |
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Quoted:
So, I've got a 16" mid length BCM upper w/ a 13" KMR handguard. I've heard it said that, for accuracy purposes, it's better to have your front sight fixed to your barrel. My question to you guys is, how much difference does it REALLY make? I'm talking real world numbers here. 1 MOA shift w/ sling tension? 2 MOA? 10 MOA? Is it worth it to get a different upper for dedicated iron sight shooting? I'm asking because planning on taking an Appleseed course here in the next couple months. I really want to learn how to shoot with irons before I invest in a high-end optic. To put things in perspective for y'all, I'm TERRIBLE at shooting rifles w/ irons. At 25 yards, I can ALMOST print better groups with my Ruger Security Six (shooting DA) than I can with my $1300 AR15. Thanks in advance. Steve Barrel deflection is a problem even at 100 yards. 25 You'd probably be good but since the move to ACOGS it's a constant issue on the range for those who do not take it into account. So much so at 200 yards your zero is useless going from center hits to shooting a foot or more left or right depending on what hand you shoot with, if you put too much tension in your sling. With iron sights it wasn't a problem since the sights deflected with the barrel but with the ACOG that isn't the case. |
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If you put a front sight on the free float hand guard, you will have to really put some ass on it to flex it. It's a lot more rigid than the barrel.
If you suck with irons and want to get good, get a set of KAC 2-600M Micros and go take the Apple Seed course. Then fold the irons down and get an ACOG or a high end LPV. 
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Quoted:
If you put a front sight on the free float hand guard, you will have to really put some ass on it to flex it. It's a lot more rigid than the barrel. If you suck with irons and want to get good, get a set of KAC 2-600M Micros and go take the Apple Seed course. Then fold the irons down and get an ACOG or a high end LPV. I disagree. Its much easier to flex a ff handguard. Its not a big deal if you sight in with a tight sling. If you are consistent with the sling tension it is very accurate. The problem comes from sighting in on a bench then slinging up. Or sighting in with a tight sling then shooting offhand. |
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