Abstract: A 35mm film cartridge in which the link between the core of the cartridge and the film to be contained in the cartridge is an elongated trailer made of one-sided adhesive tape doubled up around the core of the cartridge and adhesive sides together, to the free ends of which trailer is attached between its adhesive sides the end of the film for a short length of approximately 15mm, and which trailer is cross-perforated to form a break-off tip containing the attached film, and which trailer further has its adhesive sides separated by backing or non-stick liner for another similar short length adjoining the cross-perforation. The width of the trailer is slightly less than the width of the film so as to cover the double perforation of the film, and the material of the trailer can be paper or another suitable material, and the trailer extends to a length of approximately 75mm when fully pulled out.

Abstract: A safety filler for underloaded firearm cartridges, in which the volume of powder is less than the volumetric capacity of the powder chamber. The filler comprises a sleeve that is inserted into the powder chamber, which radially reduces the typical interior volume of a cartridge shell so that a lesser amount of powder charge fills the remaining space to about 90% of its available capacity. Being preferably made of a flexible and resilient material, the filler sleeve can be inserted into a cartridge shell having a necked-down configuration. The specific configuration of the filler sleeve provides for a reduced volume powder chamber within the cartridge to allow an even distribution of the powder which will burn evenly and uniformly, allowing safe firing of the bullet.