Greetings All,
The extravagant claims for vastly increased velocity in AI cases are only made with vastly increased pressure. Time after time actual pressure tests have shown little, if any, increased performance. The .280 Rem AI seems to be the gold standard for increased performance but this is achieved to loading to higher pressure. The .280 is loaded to comparatively lower pressure. Still it is a free country and if having an Ackley Improved case rings your bell go to it. Just don't expect the fancy shoulder to produce miracle gains. I did have a .30-06 AI at one stage but it is long gone and not missed in the slightest.
Regards Grandpamac.
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