AR Sponsor
Posted: 9/6/2009 2:15:38 PM EDT
| I have a new upper on order, can i just drop a bolt that i have on hand in it and rock and roll? or does it have to headspaced? |
|
You check headspace for SAFETY.
You want to take a chance with your rifle, face, injury or life? Not to mention the people who may witness "the incident." Aloha, Mark PS...........Quote: Excessive headspace allows movement of the case during firing. This can cause case stretching, case separation (ruptured case), and gas leakage. When the powder is ignited the base of the cartridge can move back while the sides of the case stick to the walls of the chamber. As a result the case can separate and rupture. If the bolt and receiver are not strong enough to contain and vent the blast you can at the very least damage the firearm or at worst you can injure or cause even greater harm to a bystander or yourself. Some mil-surp firearms are designed to handle a problem like case rupture. The ported holes on the side of Mauser bolts are an example of a design to vent off gases that may be inadvertently sent through the bolt to the rear of the firearm. If designs like this do not exist in the firearm you are shooting, then you could be in trouble. The wayward pressure and gas has got to go somewhere! ____________________ Insufficient headspace prevents the closing of the bolt and possibly the complete chambering of the cartridge. If the bolt is forced this can cause the bullet to be compressed further into the neck of the cartridge's case. This will lead to over pressure conditions when the cartridge is fired and may cause very similar results as excessive headspace; the case may rupture sending very hot, high pressure gases through the rear of the receiver. Sounds like fun? End Quote. Taken from : http://www.surplusrifle.com/shooting/headspace/index.asp |
Fired off about 120 rds so I guess now it's good GTG? :P
AR Sponsor