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Rifles, Reloading, Optics, Equipment
Reloading
Large vs small rifle primers and converting large to small
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<blockquote data-quote="Trnelson" data-source="post: 1302704" data-attributes="member: 42308"><p>Converting an existing case from a large rifle primer to a small rifle primer would be quite a bit of work. I'm not convinced it would be worth it to even try. Not only is the diameter of the primer smaller, it also requires a smaller flash hole and a more shallow pocket. You either have to fill/add brass material or try to move what is there. Both have issues that would need to be overcome. </p><p>Soldering in material would likely soften the case head. You would need to be able to test the hardness and completeness of the fill afterward to ensure it lacked porosity and had sufficient hardness to be safe to use. Then you would need to accurately drill out the pocket and flash hole. Another alternative would be pressing existing pieces in a die to force the material to flow into the space and then repeat the tooling operations to accept the small rifle primer. The problem I see with this option is it would thin out the case head. Making the end product weaker and less tolerant of pressure. </p><p>Possibly you could order a large quantity of brass from Bertram or RWS with no primer tooling. This would allow you to tool and finish it to your specification.</p></blockquote><p></p>
[QUOTE="Trnelson, post: 1302704, member: 42308"] Converting an existing case from a large rifle primer to a small rifle primer would be quite a bit of work. I'm not convinced it would be worth it to even try. Not only is the diameter of the primer smaller, it also requires a smaller flash hole and a more shallow pocket. You either have to fill/add brass material or try to move what is there. Both have issues that would need to be overcome. Soldering in material would likely soften the case head. You would need to be able to test the hardness and completeness of the fill afterward to ensure it lacked porosity and had sufficient hardness to be safe to use. Then you would need to accurately drill out the pocket and flash hole. Another alternative would be pressing existing pieces in a die to force the material to flow into the space and then repeat the tooling operations to accept the small rifle primer. The problem I see with this option is it would thin out the case head. Making the end product weaker and less tolerant of pressure. Possibly you could order a large quantity of brass from Bertram or RWS with no primer tooling. This would allow you to tool and finish it to your specification. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Large vs small rifle primers and converting large to small
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