From memory in USPSA rules I going to say YES.
Yes, ported barrels and chokes will put you in open.
Originally Posted By Ninja_Moose:
Yes, ported barrels and chokes will put you in open.
A small clarification. In the last revision of IMA-SMM3G rules, we amended the rule about shotgun barrel porting in the non-Open divisions to read as follows:
"Barrel devices designed/intended to reduce recoil or muzzle movement (e.g. compensators, barrel porting) are prohibited."
This change was made to differentiate between features that are intended to control recoil, and cosmetic/vestigial slots that do not control recoil (such as the ventilated PolyChoke, a breaching standoff device etc.). The former still bump you into Open, the latter are permitted in the other divisions. This is mostly an issue at smaller matches where some poor newbie would turn up with a PolyChoke on the end of his 5-shot 870 and have to shoot against the Open Division racegunners.
Check the rules of your local match carefully. As a general rule, any kind of porting in your shotgun barrel will indeed put you at peril of being bumped to Open.
