a) The term "magazine gun" applies alike to self-loading and pump action firearms and other fierarms not directly dependent on hand loading and are permissible to clay target shooters. A maximum of two rounds can be loaded at any time.
b) Release trigger firearms shall only be used on registered ACTA grounds, subject to the following conditions:
i) ACTA shooters wishing to use a release trigger shall make application to a Rules Supervisor for approval. The Rules Supervisor shall, by whatever means be determined, have the applicant examined on his understanding of the use of a release trigger device.
Where a Rules Supervisor has satisfied himself that the applicant understands the use of a release trigger device, the shooter shall be included on the master register of release trigger guns and his handicap card shall be marked accordingly by the ACTA.
ii) No ACTA shooter other than those authorised in Rule 4.14 shall use a release trigger firearm.
iii) All release trigger firearms used by ACTA shooters and overseas visitors shall be clearly labelled in a conspicuous place near the breech.
iv) Release trigger firearms shall not be left in gun racks or in positions where they can be handled but shall be constantly under the control and supervision of the user.

Rule 4.15
No firearm which has a gauge larger than 12 gauge is permitted nor shall any barrel(s) length be shorter than 63 centimetres overall.