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Some guys in 12ga like to use the Magtech brass cases
but the cases being brass the sides are thinner than plastic, and that makes loose fit in 12ga chambers. And cases expand a lot with heavier loaded slug loads, are harder to resize, wear out quicker. But I found that .750 hollowbase 10ga slug fits those cases and still chambers in regular 12ga. chamber, it isnt a sloppy fit. So If you have a 12ga smooth barrel with full length backbore job, of .850" bore or bigger you could use the Magtech brass and .850" size 10ga hollowbase slugs. Now these .850" slugs won't go in a 12ga plastic case and chamber in regular 12ga chamber.And you do not fire them through 12ga regular size barrel. Brett in MN used the a BPI AQ slugs in his full length backbored 12ga and got fair accuracy as he said the wads under slugs expanded a lot for a decent fit. The 10ga slug shown in the 2.5 inch Magtech is 800 gr, and .850" diameter. These cases will take magnum pressure so you can get good speed, for what this short case can hold. It is too bad they don't make 3" and 3.5" versions. These 2.5" cases are easier to find and much less than others, so if needing brass ones you can rig up guns to work with them. To build a new barreled gun in actual 12ga size, IE .729" bore, you'd make chamber to minimum specs so cases don't over expand. In the picture are 2 10ga slugs on right, like in the case, and 2 12ga jacketed slugs and one 12ga lead slug left.ED Here is the ytube URL again for our guy shooting 585HE in his NEF----By mid summer we plan on a pickup truck load of more 585HE cases coming in. http://www.youtube.com/watch?v=HypaUdwQGAc
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Ed Hubel |
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