Please keep the above quotation when checking headspace.There are two different standards for measuring headspace: Military and SAAMI specifications. Military specifications are more lenient in tolerances than the SAAMI specifications. Military firearms are purposely designed to have very lenient specifications so a variance in ammo supplies and adverse weather conditions would not cause the weapon to malfunction. Also military brass is thicker and can tolerate more stretching than a commercial case and because of this they can tolerate excessive headspace better than commercial ammunition, greatly reducing the chance for cases rupturing.
I agree with you, but until CIP, SAAMI and the former Com-bloc (primary manufactures of AK-47 rifles) get on the same page were kinda stuck between all of them. With SAAMI leading the way in the U.S., that's why the 5.56mm/7.62mm gauges (M16/M14-M60) are more expensive than .223/.308 caliber.DrugRunR said:You were on the money with your post, I just wanted people to know that there is a difference in specs on the factory military guages and these.
Basically I use a LIVE round as my GO guage when dealing with MATCHING # kits.
It would be cool if they could make some military spec GO guages, I would be interested in one in 5.45 and 7.62.
We've been talking about AK-47/74 type rifles which do not need to have the extractor removed. I don't know about FAL's.qbeanie said:Do you have to do anything with the bolt like removing the extractor with a FAL?
Heck yeah.magicald_223 said:Will american 5.56 gauges work to set the proper headspace??