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Originally Posted By: MoYoBomberIf set on a build, a 6mm AI will get real close to the 284 case and with light bullets the SA shouldn't be an issue. 7x57 brass sized down and your in business.

 


Help me understand the logic behind this?  Why would you go through the extra step of fire forming to get "real close" to the case capacity of a 6-284 when you can just do a 6-284 and be done.  Same goes with reaming the barrel from standard 243 to 243AI, to me, it makes no sense to go to the expense and trouble to ream a standard chamber from 243 to 243AI, then have to fire form to get that tiny little bit of extra case capacity.  If you are looking for increased case capacity and you have to stick a reamer in your barrel anyway why not go to something that gives you a good boost in velocity and requires NO fire forming.  This is only my opinion but for me, that makes no sense at all.


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