What ammo shoots the tightest groups from a 16-inch, 1:7 twist AR-15?
Start with 69 to 77 grain match ammo. A 1:7 twist barrel stabilizes heavy bullets well, and they usually group best.
AR-15
Why did the Supreme Court refuse to hear the AR-15 and magazine ban cases?
In June 2025 the Court turned down the Maryland AR-15 ban and Rhode Island magazine ban cases. In June 2026 it agreed to hear an AR-15 ban challenge, with a decision expected by June 2027.
After John Moses Browning, who is the greatest gun designer?
Our pick is Eugene Stoner. His AR-10 and AR-15 design is still the most popular rifle platform in America nearly 70 years later.