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New AR-10 10A4CBF
13 years 4 months ago #8347
by DaveS
New AR-10 10A4CBF was created by DaveS
Hi all -
I just joined the group.
I just purchase a new Armalite AR-10 10A4CBF. I mounted a Leupold VariX-II scope on it, took it to the range, bore-sighted it at 25 yards, and tried three rounds. All three rounds were all over the place (low 6" and left 6"; low 3" and centered; and high 3" and left "4"). I thought it might be the trigger and my pull (the factory trigger is a little stiff). I had the trigger modified to about 4 pounds (very nice now
) and tried another set of rounds at 25 yards. I got the same response... rounds all over the place. I started suspecting it might be the scope (it was a hand-me-down and I'm not sure of its history). I just changed out the scope for a red-dot and aligned the bore-sighter with the red dot at 25 yards tonight. I haven't had a chance to take it to the range to check it out yet.
What kind of realistic accuracy should I expect at 100 yards? Is there a preferred brand of ammo to use for it? I've been using Winchester 7.62mm 147 grain full metal jackets. Is there a break-in period where I need to condition the barrel with a minimum number of rounds first?
Thanks for any help.
Dave
I just joined the group.
I just purchase a new Armalite AR-10 10A4CBF. I mounted a Leupold VariX-II scope on it, took it to the range, bore-sighted it at 25 yards, and tried three rounds. All three rounds were all over the place (low 6" and left 6"; low 3" and centered; and high 3" and left "4"). I thought it might be the trigger and my pull (the factory trigger is a little stiff). I had the trigger modified to about 4 pounds (very nice now
) and tried another set of rounds at 25 yards. I got the same response... rounds all over the place. I started suspecting it might be the scope (it was a hand-me-down and I'm not sure of its history). I just changed out the scope for a red-dot and aligned the bore-sighter with the red dot at 25 yards tonight. I haven't had a chance to take it to the range to check it out yet.What kind of realistic accuracy should I expect at 100 yards? Is there a preferred brand of ammo to use for it? I've been using Winchester 7.62mm 147 grain full metal jackets. Is there a break-in period where I need to condition the barrel with a minimum number of rounds first?
Thanks for any help.
Dave
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13 years 4 months ago #8357
by DaveS
Replied by DaveS on topic Re: New AR-10 10A4CBF
:laugh:
We just got back from the range. We had limited time on the range but managed to put ten rounds downrange at 25 yards with some cool-down periods. I shot 5 (3 and 2) and my daughter shot 5 (3 and 2). All ten rounds were within a little bigger than a quarter size. We shot from a sandbag so it was very stable. The trigger was excellent and consistent. The red-dot performed perfectly.
This is a good thing and a bad thing, though. On the good side, the rifle is performing as good as I'd hoped. I will get more time in the future and do a proper sight-alignment at increasing distances to get it on target at 200 yards. On the bad side, though, apparently I have inherited a deficient VariX-II scope
Thanks, again, for the information and help.
Dave
We just got back from the range. We had limited time on the range but managed to put ten rounds downrange at 25 yards with some cool-down periods. I shot 5 (3 and 2) and my daughter shot 5 (3 and 2). All ten rounds were within a little bigger than a quarter size. We shot from a sandbag so it was very stable. The trigger was excellent and consistent. The red-dot performed perfectly.
This is a good thing and a bad thing, though. On the good side, the rifle is performing as good as I'd hoped. I will get more time in the future and do a proper sight-alignment at increasing distances to get it on target at 200 yards. On the bad side, though, apparently I have inherited a deficient VariX-II scope
Thanks, again, for the information and help.
Dave
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