1. At 5:43 we see a velocity vs. barrel length chart for I believe M855 - https://youtu.be/tGgjiAapvbE
Why does the velocity at 12'' and 20'' drop, but then increases again?
2. Does anyone have any info. (preferably video or pictures) on how 5.56 performs in gel at extended range? We always see videos of short range gel tests, and hear how bad 5.56 is at longer (low velocity) ranges, but is there any evidence of this available?
3. For those who have experience with both 14.5'' and 16'' ARs, how do they compare in terms of maneuverability from a weight perspective? Said another way, does the slight reduction of weight out front make a difference, or is it negligible?
Why does the velocity at 12'' and 20'' drop, but then increases again?
2. Does anyone have any info. (preferably video or pictures) on how 5.56 performs in gel at extended range? We always see videos of short range gel tests, and hear how bad 5.56 is at longer (low velocity) ranges, but is there any evidence of this available?
3. For those who have experience with both 14.5'' and 16'' ARs, how do they compare in terms of maneuverability from a weight perspective? Said another way, does the slight reduction of weight out front make a difference, or is it negligible?