Headspacing?? > Build It Yourself

Posted: 10/6/2006 11:54:08 AM EDT

Is there anyway to do it without go no guages?

Posted: 10/6/2006 12:23:47 PM EDT

[#1]

i have read somewhere about using pieces of masking tape on the back of a bullet, but do not remember the exact details on this

Posted: 10/6/2006 12:31:58 PM EDT

[#2]

Quoted:
Is there anyway to do it without go no guages?

Many people use masking tape, but for around $30, you can buy a No-Go gauge. If you'd rather not spend the $$$ for a gauge, hook up with someone local to check it (ie. local build party). For my peace of mind, I spent the $$$ and got gauges. They came in handy at a few of the build parties we've had here. If you're in Colorado, I'll hook you up.

Build safe and have fun,
Kyle

Posted: 10/7/2006 9:11:01 AM EDT

[#3]

Take one piece of masking tape, put it over the primer, the bolt should close on this completely, this is your go gauge. Take one more piece of tape and put it over the top of the first to make two layers of tape (make sure the tape doesn't cover any part of the cartridge that goes into the barrel) the bolt should not close completely on it, this is your no go gauge. Take one more piece for a total of three layers and try it again. The bolt shouldnt even rotate into the lugs at this point. I tried this method last night with a new build and it works great.

Posted: 10/7/2006 6:29:57 PM EDT

[#4]

Thanks for the info!

Lets see if I understand what's happing;

Take one piece of masking tape, put it over the primer, the bolt should close on this completely, this is your go gauge.
This says ammo has gone in far enough

Take one more piece of tape and put it over the top of the first to make two layers of tape (make sure the tape doesn't cover any part of the cartridge that goes into the barrel) the bolt should not close completely on it, this is your no go gauge.
This means ammo doesent go in to far

Take one more piece for a total of three layers and try it again. The bolt shouldnt even rotate into the lugs at this point. I tried this method last night with a new build and it works great.
Not exactlly sure whats being tested here

Posted: 10/7/2006 8:39:28 PM EDT

[#5]

Quoted:
Thanks for the info!

Lets see if I understand what's happing;

Take one piece of masking tape, put it over the primer, the bolt should close on this completely, this is your go gauge.
This says ammo has gone in far enough
Not necessarily true, this demonstrates that there is enough room for the bolt to close on a cartridge thats cold and hot, the tape means you have a little wiggle room

Take one more piece of tape and put it over the top of the first to make two layers of tape (make sure the tape doesn't cover any part of the cartridge that goes into the barrel) the bolt should not close completely on it, this is your no go gauge.
This means ammo doesent go in to far
again not quite accurate, this one demonstrates that theres not too much room between the face of the bolt and the face of the barrel, leaving potential for explosion.
Take one more piece for a total of three layers and try it again. The bolt shouldnt even rotate into the lugs at this point. I tried this method last night with a new build and it works great.
Not exactlly sure whats being tested here
a field gauge really tests if you have waay too much headspace in a firearm. In some firearms it is "okay" (I wouldn't reccomend it) for the bolt to lock on a no go gauge, but under no circumstances would you ever want to fire a firearm that would lock on a field gauge.

Hope that helps.

Posted: 10/8/2006 4:32:43 PM EDT

[#6]

Quoted:

Quoted:
Thanks for the info!

Lets see if I understand what's happing;

Take one piece of masking tape, put it over the primer, the bolt should close on this completely, this is your go gauge.
This says ammo has gone in far enough
Not necessarily true, this demonstrates that there is enough room for the bolt to close on a cartridge thats cold and hot, the tape means you have a little wiggle room

Take one more piece of tape and put it over the top of the first to make two layers of tape (make sure the tape doesn't cover any part of the cartridge that goes into the barrel) the bolt should not close completely on it, this is your no go gauge.
This means ammo doesent go in to far
again not quite accurate, this one demonstrates that theres not too much room between the face of the bolt and the face of the barrel, leaving potential for explosion.
Take one more piece for a total of three layers and try it again. The bolt shouldnt even rotate into the lugs at this point. I tried this method last night with a new build and it works great.
Not exactlly sure whats being tested here
a field gauge really tests if you have waay too much headspace in a firearm. In some firearms it is "okay" (I wouldn't reccomend it) for the bolt to lock on a no go gauge, but under no circumstances would you ever want to fire a firearm that would lock on a field gauge.

Hope that helps.

Yes it does help me to understand the concepts. Think I will order the guages to be safe.

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