308 is a capable long-range round, at home both in hunting, warfare, and varminting. With a huge variety of bullet loads available - from as light as 79-grains up to a chunky 200-grains, the. 308 is performant and lethal viable up to 800 yards out. In short, the cartridge cuts weight without impacting ballistic performance - as the. 308 weighs 17 ounces, while 20 rounds of вЂ™06 weighs 19.5 oz). 308 shaves 15% off the weight (20 rounds of 180 grain. Why boil down вЂњGodвЂ™s CaliberвЂќ? Well, for an identical number of rounds the. 30-06-level performance into a smaller cartridge - the end result of their experimentation was the. In the 1940s the Army set out to package. Fast forward over 60 years and the similarity between the two platforms is easy to see. That scaled-down AR-10 was dubbed the AR-15. Army trials, incorporating a shorter barrel & nice additions like Picatinny rails for out-of-the-box range shooting performance. This led to a five-year overseas licensing deal with a Dutch firm in 1957 to make AR-10s for export to places like Sudan and Portugal while StonerвЂ™s assistant, Robert Fremont, along with Jim Sullivan scaled the rifle down to. Army rifle trials, the space-age firearm with some bugs (surprise, surprise) lost to the ArmyвЂ™s in-house developed and preferred wood stocked M14. The composite aluminum barrel and a banana-sized soup strainer-style muzzle device werenвЂ™t up to the rigors or combat, despite the AR-10вЂ™s designation as the best. The early AR-10 prototypes included some things that, due to the nature of 1950s-era technology and manufacturing techniques, didnвЂ™t quite work out.

Ar 10 7mm 08 upper