Shot-shell primers can be used in cartridges made of metallic. 209 primers for pistols and riffles differ with regard to their construction. The cups of the pistol primers are made of thinner metal and the mixture burns more strongly. Method of rolling a cap gun capThis is the easiest option and works great using pistol cartridges that are made from fast-burning powder. The primers produced using this method might not be sufficiently energetic for stable ignition of slower burning rifle powders. Marshall lists the top cap firearm caps. He provides instructions on how to recharge the primer cups. He shows how to charge the primers using the caps. With practice, several primers per minute can be produced. These primers can be corrosive. Marshall's son-in law recently tried 50 9mm cartridges. Three years ago the cartridges were loaded using caps gun roll caps primers. They all functioned as normal loaded cartridges. There were no failures to either feed or fire. The strike-anywhere, match-head method (detailed at TM-31-210) While it is more powerful than primers, it's more difficult to utilize. Each primer can take between 5 and 10 minutes to complete. These primers can be highly corrosive. Replicate the U.S. Army's priming chemicals prior to, during, or after WWI Priming chemicals have a long shelf-life, and are extremely stable and energetic. They can be very corrosive. They aren't difficult to produce, requiring only 3-4 components (there are minor variations). To protect the user, the components are mixed dry in small quantities of less than 2 grams. After the mixture has been placed into the cup for priming, the priming mixture must be moistened. Then, the anvil is erected. The primers produced with this method are very close to commercial primers for durability and shelf life. Careful production of primers can be accomplished at a speed of almost one a minute. The main chemicals used in the U.S. Army compounds are potassium chlorate (KClO3) antimony sulfur (commonly known as stibnite, Sb2S3) sulfur, ground glass sodium bicarbonate (baking powder), and powdered aluminum. Primer that is perfect can be made with just three components. These are great in the long run for stability and ignition of slow particles. A dilute varnish/water/alcohol solution is commonly used to wet the mixture and as a binder. Combining the chemicals and assembling the 209 primers is an easy recipe-based procedure that does not involve any chemistry. Create your own chemical precursors The advantage of this technique is that it yields excellent quality, non-corrosive primers. This technique requires a basic understanding of wet chemistry skills. This method requires the manufacture of chemical precursors that can't be readily available in commercial channels, to make non-corrosive primering compounds. The precursor chemicals involve some risks, and the wet chemistry synthesis methods need to be followed strictly. When the precursor chemicals are made, the recharging process of the primers replicates an older Ely prime method (whose patent has expired). Once the dry mixture is moistened, the actual priming compounds are synthesized in the priming cups. This is the best way to place the priming substance into the cup. Dry mix isn't a problem. It can be produced from the synthesized chemicals with a fair degree of safety. You can store it safely in small quantities. Once the dry mix has been made, the process of recharging the primers can take just over a minute each. Simple small batch methods may aid in increasing production, however the safety requirements are that there should be no more than one dozen or two primers are recharged in a batch. The recharging/reloading, or even manufacturing of 209 primers is well within the capability of the average hobbyist. When I first started I would have believed it impossible even to the point of being impossible. Today I am a more shrewd person. This information is worthy of the attention of a large public. Marshall Thompson, PhD and anonymous Internet publishers should be applauded for their work.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
June 2023
Categories |