I did manage to shoot some (1979) M118 Match ammo and some (1991) M118 special ball ammo on Sunday after a long day of yard work. I used my rack grade M14SA made by Federal Ordnance Inc, and my Remington 783 HBT with its factory 24" heavy barrel. The purpose was to compare velocities between the 2 rifles with "sniper grade/match grade" ammunition, and to get the rifle scopes on paper at 25 yards. I had a little malfunction with my chronograph during my first 2 strings with the M14, using the M118 Match ammo and the M118 SB ammo, so all I have for those are the velocities and ES, no SD. My Rem 783 is the closest thing I have to an M24. I was surprised to see higher velocities with the M14 then with the 783. The M118 Match ammo is the white box stuff that has 2550 fps on the box, even though the ammunition technical manual lists 2640 fps.
M118 Match ammo average velocity / SD / ES:
M14, 2633 fps / ? / 93
Rem 783, 2594 fps / 13 / 31
M118 SB, avg vel / SD / ES:
M14, 2708 fps / ? / 76
Rem 783, 2640 fps / 25 / 65
M118 Match ammo average velocity / SD / ES:
M14, 2633 fps / ? / 93
Rem 783, 2594 fps / 13 / 31
M118 SB, avg vel / SD / ES:
M14, 2708 fps / ? / 76
Rem 783, 2640 fps / 25 / 65
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