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  2. Headspace (firearms) - Wikipedia

    en.wikipedia.org/wiki/Headspace_(firearms)

    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 ...

  3. Talk:Headspace (firearms) - Wikipedia

    en.wikipedia.org/wiki/Talk:Headspace_(firearms)

    Headspace for a firearm made for rimmed ammunition is the free space that remains between the rim-stop and the bolt face (less the thickness of the rim) once the cartridge is fully within the chamber and the bolt is fully home and locked (if it is a breach locked action).

  4. Push feed and controlled feed - Wikipedia

    en.wikipedia.org/wiki/Push_feed_and_controlled_feed

    Push feed mechanisms in theory give the opportunity to design a safer firearm when it comes to a case rupture (for example due to overpressure or excessive headspace) since the bolt head can be designed with a smaller extractor claw which in turn gives the rest of the bolt head a bigger surface area and therefore better support for the ...

  5. RI looking to build understanding of firearms: Free intro ...

    www.aol.com/ri-looking-build-understanding...

    The Rhode Island Department of Environmental Management is offering an introduction to firearms course to help support its mission. RI looking to build understanding of firearms: Free intro class ...

  6. List of military headstamps - Wikipedia

    en.wikipedia.org/wiki/List_of_military_headstamps

    From 1945 to 1986 Dominion Arsenal was under the control of a nationalised crown corporation called Canadian Arsenals Ltd that was controlled by the Department of Supply and Services. Canadian Arsenals Ltd. was privatised and bought by SNC-Lavalin in 1986. DI Defence Industries Ltd. (1940–1946) – Park Avenue, Brownsburg, Montreal, Canada. A ...

  7. How will Illinois law banning some firearms affect gun owners ...

    www.aol.com/news/illinois-law-banning-firearms...

    Here’s what gun owners in the state need to know. ... but those needing to register can contact the Firearms Services Bureau at isp.askfoidandccl@illinois.gov or 217-782-7980 with any questions. ...

  8. Glossary of firearms terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firearms_terms

    Improvised firearm: A firearm manufactured by someone who is not a regular maker of firearms, often as part of an insurgency. Internal ballistics : A subfield of ballistics , that is the study of a projectile 's behavior from the time its propellant 's igniter is initiated until it exits the gun barrel .

  9. Gun owners face a Jan. 1 deadline to register their assault weapons with the state under Illinois’ assault weapons law.