Search results
Results from the WOW.Com Content Network
Headspace positioning of rimless, rimmed, belted and straight cartridges Several different rimmed, .22 rimfire cartridges, which have a uniform forward diameter, and which have headspace on the rim, allowing any length of cartridge shorter than the maximum size to be used in the same firearm Firearms chambered for tapered rimmed cartridges like this .303 British cannot safely fire shorter ...
In this process it is important so set the correct headspace. [2] Correct mounting is important both for safety and accuracy. [3] If the barrel, receiver and bolt are not fitted properly, severe and potential fatal problems can arise due to faulty headspace, e.g. cartridge overpressure and case rupture.
The belt was carried through on other cartridges derived from the .375 Velopex, like the belted .375 Holland & Holland Magnum of 1912, in some cases to allow the cartridge to function in bolt-action rifles (the original .375 H&H Magnum was a rimmed case for use in double-barreled rifles), or to prevent the higher-pressure magnum cartridge from ...
The delta L problem (ΔL problem) refers to certain firearm chambers and the incompatibility of some ammunition made for that chamber. ΔL is a Commission Internationale Permanente (C.I.P.) geometric dimensioning and tolerancing definition for cartridge cases that are longer than the chamber they have to fit in. "Delta L" essentially means "difference in length".
Non-shouldered (non-"bottlenecked") magnum rifle cartridges especially could be pushed too far into the chamber and thus cause catastrophic failure of the gun when fired with excessive headspace. The addition of the belt to the casing prevented over-insertion, while allowing smoother feeding from a box magazine compared to a rimmed cartridge .
A CBS News investigation found dozens of law enforcement leaders — sheriffs, captains, lieutenants, chiefs of police — buying and illegally selling firearms, even weapons of war, across 23 U.S ...
Here’s Nick, pausing in a lull. He spots somebody darting around the corner of an adobe wall, firing assault rifle shots at him and his Marines. Nick raises his M-4 carbine. He sees the shooter is a child, maybe 13. With only a split second to decide, he squeezes the trigger and ends the boy’s life. The body hits the ground. Now what?
The Headspace Diagram is incorrect for headspace location on the rifle cartridge. The headspace locates from a diamter on the cone at the front of the cartridge, that is the shoulder, not at the point where the shoulder meets the neck. Can someone fix this graphic?Metafortis 13:41, 1 April 2016 (UTC)