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That was at 50yds. My scope has 70 moa total travel, so 35 moa to bottom out the erector. Then the bullets were hitting 56" high ( times two because I'm at 50yds ) so (56x2) + 35 = 147.
Though I suppose more accurately it would be 107.7 moa +35 so 142.7 moa if you factor in that 1 moa is actually a little bigger than an inch at 100 yards.
So last time I tried to sight in with that funky home made AR-10 riser (not the one Fenton made for my 338, just to be clear) I ran into the problem that even aiming at the bottom edge of the target my shots were going over the top.
I could use my substensions to hold under the target but that meant dialing down to 6x to make the substensions hold 3x their marked value, which causes problems of it's own. As I've experienced elsewhere holding over or under a target just makes everything harder than it has to be.
The target hangers at the range are about 6' tall, the targets are 36" tall. So I took one of those cheap mini tape measures that are either 49 cents or 99 cents (I forget, but it was cheap) and stapled it to the target so that it extended from the top of the hanger down to the ground below.
This allowed me to have a point of aim below the target that was consistent. By aiming at the tip of the tape measure I could see exactly how high the bullets were hitting without having to stop and measure.
It also made taking pictures for my notes much easier. The picture is cropped but I also took some other shots with different hold overs etc.
So to answer your question, I shot the tape measure because it made my life easier.
I think after tomorrow I'm probably not going to be shooting the AR-10 at 2k very often. I'm picking up my 338 LM in approximately two weeks which is much better suited to long distance shooting. If tomorrow goes well I might still use the 308 occasionally at 2k, but it's effectively a backup piece now.
To answer your second question, I definitely looked into an upper in .243 but it would make more sense to me to just build a bolt action for a few hundred bucks more. I read up on it and weird issues were popping up for people who tried to make it work in the AR-10 platform. It was enough trouble getting 308 to perform. I'll pass on that headache.
JMP, you will be happy to know though that I'm actively trying to get a SWFA HD 5-20 scope. I'm attempting to work a trade with someone right now since the upgrade to 338 LM ate my cash.
Sent from my Nexus 6P using Tapatalk
Though I suppose more accurately it would be 107.7 moa +35 so 142.7 moa if you factor in that 1 moa is actually a little bigger than an inch at 100 yards.
So last time I tried to sight in with that funky home made AR-10 riser (not the one Fenton made for my 338, just to be clear) I ran into the problem that even aiming at the bottom edge of the target my shots were going over the top.
I could use my substensions to hold under the target but that meant dialing down to 6x to make the substensions hold 3x their marked value, which causes problems of it's own. As I've experienced elsewhere holding over or under a target just makes everything harder than it has to be.
The target hangers at the range are about 6' tall, the targets are 36" tall. So I took one of those cheap mini tape measures that are either 49 cents or 99 cents (I forget, but it was cheap) and stapled it to the target so that it extended from the top of the hanger down to the ground below.
This allowed me to have a point of aim below the target that was consistent. By aiming at the tip of the tape measure I could see exactly how high the bullets were hitting without having to stop and measure.
It also made taking pictures for my notes much easier. The picture is cropped but I also took some other shots with different hold overs etc.
So to answer your question, I shot the tape measure because it made my life easier.
I think after tomorrow I'm probably not going to be shooting the AR-10 at 2k very often. I'm picking up my 338 LM in approximately two weeks which is much better suited to long distance shooting. If tomorrow goes well I might still use the 308 occasionally at 2k, but it's effectively a backup piece now.
To answer your second question, I definitely looked into an upper in .243 but it would make more sense to me to just build a bolt action for a few hundred bucks more. I read up on it and weird issues were popping up for people who tried to make it work in the AR-10 platform. It was enough trouble getting 308 to perform. I'll pass on that headache.
JMP, you will be happy to know though that I'm actively trying to get a SWFA HD 5-20 scope. I'm attempting to work a trade with someone right now since the upgrade to 338 LM ate my cash.
Sent from my Nexus 6P using Tapatalk
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