How much to rebarrel a Rem 700?

Guntech and Leeper,
Typically how deep are you cutting these dovetails on the bolt body?

These dovetails sure look cleaner and more robust than the glued on "half ring" shims I have seen installed. Very nice.
 
I didn't know how deep Bill cut so I usually go 75 thou deep. Rather than the 85 or 90 many dovetails are cut. I use the .359" dovetail cutter from Brownell's. One pass in one direction, adjust for the dovetail blank measurement and one return pass. A few strokes with a file.
 
EHG said:
Ok, I understand the rear of the bolt being tightened up, but what about the front? Doesn't it still have the extra play?
Saw an article, but can't remember where that someone shimmed both front and rear of the bolt after the action was bored straight oversize and threads recut.

Just curious because I think the average person would rather just get a custom action than pay for all this realigning.
Click to expand...

I would prefer to leave the front free with perfectly matching surfaces between the lugs and recesses... the cartridge in the chamber, engaged in the bolt face will align up fine. As Bill stated the only purpose of the rear being 'bumped' is to remove or reduce the amount of up and down movement the trigger causes on engagement and release... and hopefully a potential accuracy increase however small that may be.
 
Bumps or cams like the ones Greg tanned or a few others work really well too. Dovetail looks quick and dirty.....and works. Hard to do at the lugs mind you. Thank u for sharing.
 
20170326_192103.jpgI recently had guntech build me a rifle I am very pleased it was easy on my end and quick I thought the cost was good. Here's a finished bump it's very subtle I don't feel it working the bolt. Mine is all stock but customized parts except the new benchmark barrel.20170326_192103.jpg
 

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Leeper said:
I started doing them .050 but then went to .062 to make it 1/16". No real reason for the change.
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guntech said:
I didn't know how deep Bill cut so I usually go 75 thou deep. Rather than the 85 or 90 many dovetails are cut. I use the .359" dovetail cutter from Brownell's. One pass in one direction, adjust for the dovetail blank measurement and one return pass. A few strokes with a file.
Click to expand...

Thanks Gentlemen.
 
At the front of the bolt (right behind the lugs) the cutting of a dovetail would introduce a stress point and would weaken the lug so it is not usable at that point. There are other methods which can be used but the benefits are questionable and function in the field might be affected. Possibly the best is the use of a separate insert which sits in the recess ahead of the lugs. This not only supports the bolt head but makes an excellent gas baffle as well. Generally speaking, adding a part is never great design though and I feel the same way about this.
 
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