Yesterday I posted In these chaotic times, a brief AR-15 primer and some said that they prefer their AR-10 in .308. I suspect that what they have may actually be a LR308 which is incorrectly called an AR-10. This post is more advanced than the AR-15 primer and discusses the differences between the AR-10 and the LR308: Before we dive into the subject of differentiating different style of AR10 patterns — first, let’s make sure we all know what an AR10 actually is. The AR10, or ArmaLite 10, is a rifle designed around the 7.62x51mm NATO cartridge. Developed by Eugene...