RE: Knight Full Plastic Jacket
I converted my Knight MK-85 to shoot the full plastic jackets. They are very easy to load- you can push them on with your finger with no problem. When you shoot your rifle with these, the 209 primers will not blow apart and you will get a lot less blowback into your action, resulting in less fouling and easier cleaning. They do form a tight waterproof seal around the breech plug. Add to all of this the convenience of keeping extra jackets with primers already seated in your pocket or pouch, and reloading will be much faster. I am very pleased with my conversion kit. I hope this helps you out.