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Old 08-17-2017, 03:05 PM
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DAA DAA is offline
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Default How bedding affects accuracy

Just posted on my blog.

Why rifle bedding matters for accuracy. Nothing new or earth shattering, but if it's something you don't already know and have wondered about, you might find it useful.

- DAA
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Old 08-17-2017, 10:36 PM
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Weasel Weasel is offline
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Very good, Dave! Thanks for sharing that.
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Old 08-18-2017, 06:14 AM
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XNAVYORDIE XNAVYORDIE is offline
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Surgical tubing.......never thought of that. I have used wood clamps in past but the tubing makes much more sense.
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Old 08-22-2017, 07:04 AM
BC Buck BC Buck is offline
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That was a good read. How much movement do you see after you bed the gun.
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Old 08-22-2017, 08:30 AM
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How much improvement just depends. On how bad the bedding was. On how good the barrel is. Bedding can't help a crappy barrel much. And a great barrel can still shoot pretty good even with just okay bedding.

I've seen with just fixing the bedding on factory rifles take them from over 1 MOA to about 3/4 MOA. But I've also seen it not make much difference on factory rifles with just crap for barrels. Which, unfortunately, describes an awful lot of factory rifles.

Custom barrels, have almost never done a before and after. They all get great bedding jobs right out of the gate. I do have one Hart barrel that I screwed onto a 700 action and put into a 40X stock without redoing the bedding. That stock had already been pillar bedded for the original 40X. It shows about .004 movement on the dial. Which would be really good for a factory rig, but isn't so great for a "custom". Anyway, that rig shoots in the high 3's, sub 1/2 MOA, even with just okay bedding. Great barrel. Could probably suck it in a little bit more if I can find time to fix the bedding though. Might get it into the low to mid 3's. Talking improvement of about 1/10th to 1/20th MOA here. But when it's already shooting in the high 3's, that's a pretty big improvement. Wouldn't ever even be able to notice that kind of improvement in 99% of factory rigs though.

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Old 01-09-2018, 08:11 PM
coyotetan coyotetan is offline
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Hi DAA,

I used your method to check a bedding job I did recently, the dial did not move when I loosen the rear action screw , it moved about 2 thousandths when I loosen the front action screw, I felt pretty good about my bedding job.

Thanks for sharing.
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Old 01-09-2018, 10:00 PM
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That ought to work!

- DAA
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