.22LR Go/No Go Headspace Gauge Set

it's no problem whatsoever to order them from Brownells. look up whatever gauges you want on the Brownells website, phone them up and ask for Sandy in International sales and give her the catalog # so you aren't wasting her time and yours. have your credit card handy too. cheers.

also ask for USPS shipping.
 
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+1 on Brownells. Don't think there is a Canadian source, though if you had a lathe you could just make your own.

IBM said:
I thought rimfires index from the rim so headspace isn't as relevant... but I don't know that much about it.
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Headspace being defined as the distance between the breech face (where the rim seats) to the recess in the bolt nose, needs to be in spec just as much as any other firearm. Too little headspace, and you crush rims or maybe can't even close the bolt. Too much headspace and you suffer light primer strikes or potentially ruptured case walls if too much of the casing is sticking out of the chamber.
 
barsik said:
it's no problem whatsoever to order them from Brownells. look up whatever gauges you want on the Brownells website, phone them up and ask for Sandy in International sales and give her the catalog # so you aren't wasting her time and yours. have your credit card handy too. cheers.

also ask for USPS shipping.
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Thanks for the info, greatly appreciated!
 
I am curious why you want head space gauges...?

Headspace gauges for a 22 rim fire are seldom needed. It's kind of built into the bolt face...
 
guntech said:
I am curious why you want head space gauges...?

Headspace gauges for a 22 rim fire are seldom needed. It's kind of built into the bolt face...
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I would have thought the exact same thing...but perhaps it would be a useful tool to rule-out headspace being an issue on a problem gun..? Can't say I've ever had cause for concern (x God knows how many 22s over the years) but I suppose it could be.
 
grauhanen said:
Headspace can be too much or too little. Either way can cause problems.
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On a 22 rim fire too much causes misfires and when it fires shows a bulged case... too little and you can't close the bolt. I have been gunsmithing for over 50 years and have found no need for 22 rim fire headspace gauges unless you are chambering a match quality chamber on a re barrel. Never seen one with too little headspace..
 
if your lathe is good enough to chamber a barrel then it is beyond what you need to make your own gauges for a .22 lr, if you just want to measure things to see where your rifle is at a fired case compared to that unfired case is about all you need given that you should have 1 thou or lass rim clearance on a closed bolt, 3 thou on a field rifle and no clearance on a bold action precision rig. the gauges are great for building a general purpose plinking rifle, in the world of precision I turn my barrel in until I am tight on an unfired case, of course i am using a coned breach face and don't have a milled pocket for the extractor either, but the same rules apply when chambering a new rifle, then the extractor slot is indexed and milled
 
guntech said:
Never seen one with too little headspace..
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Not to be argumentative, but I've seen two older, well-used rifles that had too little headspace. It was impossible to close the bolt on a go gauge. I didn't see how they shot, but did see that too little headspace does occur. It can theoretically cause an unsafe discharge before the rifle is aimed. But perhaps it is relatively common as you say.
 
If you miss those, give Gary Eakin a call at Bighorn Sales in BC. Good guy to deal with.
The dealings I had with Brownell's was a pain in the ***, primarily because they shipped via UPS despite me requesting USPS.
 
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