General Discussion
In reply to the discussion: British SAS sniper kills ISIS flamethrower executioner with a crack shot to save 12 hostages [View all]Eleanors38
(18,318 posts)Evidently, that is enough to smear up the conventional exposed lead tips of bullets, even when sheathed in copper. How heat affects all-copper bullets ( what the industry is going to soon) is unknown to me. The last 20 years have seen remarkable tech advances in arms and ammo: Rifles which shot 1" inch groups in the 90s would cost you several thousand dollars and hand work in custom shops. Some can shoot that well at a retail cost of -$600. And factory (i.e., cheap) ammo can now shoot like the premium stuff of the 90s.
It seems that only the overall design and action of firearms available to civilians has remained in stasis. (There is an industrial documentary on Youtube called "One at a Time" which shows how Remington makes their civilian arms. In one scene, a worker uses a computer to draw out the plans for a shotgun. In 1969.)
I am told that supersonic Soviet-era fighters were very heavy due to the use of stainless steel to counter heat from resistance. U.S. models used titanium, which at the tme was available only to the U.S. and presumably its allies. Titanium is much lighter.