Brian's Forums... Maku mozo! > 6x45, aka 6mm-.223

Anybody have some experience with this cartridge? What is the heaviest bullet you can use at 2.25" OAL? Does it require any forming of the brass other than the sizing die? Is there any published load data? Full Version: 6x45, aka 6mm-.223 There is published load data, mostly for T/C in silhouette use. If you're thinking of trying to make Major for USPSA/IPSC, I've been down that path. I researched all the data (some looks promising) and talked to several factory ballisticians. they were uniformly dubious about making Major at any sane pressure for the AR. The most encouraging resp

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