ASI, LLC strives for stability in its rules, but occasionally a line or two will change. You’ll find our latest here:
Changes from version 1.4 to 1.5 are shown in red. Most of the red ink spots are minor changes in wording. The most significant change would be dropping the minimum caliber.
(This actually made the rulebook shorter and scoring simpler. Shooters using .22’s may now be scored along with shooters using larger calibers. In the process, we dropped the ban on intermediate calibers like .32 ACP, .32-20, .327 Fed Mag, and 7.62X25. CAUTION: Some of the .32’s are not safe for use on steel targets!)