Jamison Brass and Ammunition has a full quality control and quality assurance laboratory in house. The lab consists of all the gauges and tests needed to meet all caliber tolerances. Jamison follows all specifications according to SAAMI and CIP standards. The tests and measurements performed on all products assure the highest quality possible. Testing and analysis of all products begin from the moment raw materials are received all the way to the finished product as it is being packaged for sale. Jamison Brass & Ammunition manufactures cases ranging from vintage hard to find calibers to modern military, African game to Western cartridge brass and ammunition. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.
The 25-20 Single Shot ammunition is loaded with a Sierra Varminter bullet. This load is meant to replicate old/original ballistic performance of the now obsolete cartridge. Sierra Varminter Bullets deliver the performance and consistency needed in the demanding sport of varmint hunting. The 25 Caliber 87 Grain Varminter started out as another varmint bullet option for rifles of this caliber. It then proved to be accurate at any velocity and thus began seeing more use in all 25 Caliber cartridges. Although it is primarily designed for use on varmints, this bullet may be used on medium sized game.