Need to borrow AK74 headspace gauges

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08-31-2012, 12:42
OneGuy67

Need to borrow AK74 headspace gauges

Does anyone happen to have a set of headspace gauges for the AK74 that I might be able to borrow for a weekend?

I'm finishing a parts kit with a new barrel.

Thanks!
08-31-2012, 21:06
bryjcom

Quote:

Originally Posted by OneGuy67

Does anyone happen to have a set of headspace gauges for the AK74 that I might be able to borrow for a weekend?

I'm finishing a parts kit with a new barrel.

Thanks!

Take a russian 7n6 round and put one piece of scotch tape on the back of it and trim off excess with razor blade.

The scotch tape is .002" thick and will effectivly add .002" to the round.

Set the barrel so the bolt will just close on that case WITH OUT pressure.

Then try it with 2 pieces of tape(.004" thicker)

If it won't close or won't close with out pressure then drill your barrel pin hole, pin and the recheck headspace using the above method.

I've headspace all my AKs this way and it works every time.

This method may make the headspace on the tight side but I haven't had any extraction or chambering problems ever, and even if you do you can always lap the bolt back a .001 or .002"
09-01-2012, 00:43
jreifsch80

I have a no go
12-11-2012, 23:14
spongejosh

Is it safe to assume this method will work for an AK in 7.62x39 and a Tula round?
12-12-2012, 00:05
bryjcom

Quote:

Originally Posted by spongejosh

Is it safe to assume this method will work for an AK in 7.62x39 and a Tula round?

Which method are you referring too?
12-12-2012, 01:54
spongejosh

Sorry, thought I had the quote in there. I'm referring to your scotch tape method.
12-12-2012, 06:53
bryjcom

Yes it will work for 762 ak rifles. I would take 2 or maybe 3 live rounds and put tape on the back of them. Check them in the chamber for any differences with the bolt closed and set it were you want then drill barrel pin hole.
12-12-2012, 08:14
BPTactical

Let's make sure we strip the bolt prior to this please.
Using 3-4 different rounds is a good plan, you get a better average.
12-12-2012, 10:05
spongejosh

Thanks guys. Using a couple rounds makes sense. I just wasn't sure if one piece of tape would be sufficient. Stripping the bolt was the first thing I did when i got my parts kit. [Beer]
12-12-2012, 10:41
Wulf202

I have 7.62x39 and 7.62x54r go/nogo sets if anyone needs to borrow
12-12-2012, 21:22
zteknik

Quote:

Originally Posted by Wulf202

I have 7.62x39 and 7.62x54r go/nogo sets if anyone needs to borrow

Cool,I have to remember that for this summer when I get around to the barrelless kit.
12-13-2012, 19:54
jreifsch80

Quote:

Originally Posted by zteknik

Cool,I have to remember that for this summer when I get around to the barrelless kit.

or just build them up north with us where we have gauges bob
12-13-2012, 20:14
zteknik

Quote:

Originally Posted by jreifsch80

or just build them up north with us where we have gauges bob

I have to do something at home to justify cluttering up the garrage-otherwise I have to clean it out...[LOL]
Oh I have a few for up north :D