Re: Calls and Strikes
Frank, the chronographing is worth its weight in gold for sure. I don't think anyone else out there offers it for visiting students and courses.
Most folks will have absolutely no idea whether or not their barrel is fast (i.e., a tight, new .298-bore Krieger), OK, or slow (a worn or tired M24, 700V, or PSS) -- just that their favorite drop chart has to be tweaked (again, initial data building).
While I have generic 175 Match King data memorized I tweak between barrel lengths even with the same load (28-inch Paramount; 26-inch 700VS; 22-inch AR-10T and SRS; and 16-inch AR-10 carbine and SRS). Velocity differences may or may not be a big deal affecting holds.
You and I and others who travel often between the Rockies and the lowlands or Iraq/Afghanistan/North Africa or the Horn or other places will see density altitude zero changes where the same rounds from 6,000 to 12,000 feet ASL may be subsonic 300 yards earlier in the thick air below 1,000 feet.
Someone busting woodchucks or prairie dogs within 100 miles of home, or a big-city cop who doesn't have to go mobile might never need nor see the differences.
Banking on return fire or losing out on a trophy on an expensive antelope, elk, moose, or caribou hunt might make a sad face.
Frank, the chronographing is worth its weight in gold for sure. I don't think anyone else out there offers it for visiting students and courses.
Most folks will have absolutely no idea whether or not their barrel is fast (i.e., a tight, new .298-bore Krieger), OK, or slow (a worn or tired M24, 700V, or PSS) -- just that their favorite drop chart has to be tweaked (again, initial data building).
While I have generic 175 Match King data memorized I tweak between barrel lengths even with the same load (28-inch Paramount; 26-inch 700VS; 22-inch AR-10T and SRS; and 16-inch AR-10 carbine and SRS). Velocity differences may or may not be a big deal affecting holds.
You and I and others who travel often between the Rockies and the lowlands or Iraq/Afghanistan/North Africa or the Horn or other places will see density altitude zero changes where the same rounds from 6,000 to 12,000 feet ASL may be subsonic 300 yards earlier in the thick air below 1,000 feet.
Someone busting woodchucks or prairie dogs within 100 miles of home, or a big-city cop who doesn't have to go mobile might never need nor see the differences.
Banking on return fire or losing out on a trophy on an expensive antelope, elk, moose, or caribou hunt might make a sad face.