#### Brent

##### Well-Known Member

We shot a 5 round group at each 1gn increment.

140's were 66-68gn.

123's were 67-69gn.

123gn Scenar, OAL 3.080", CCI-250, Win brass, seated to lands. average velocity and pressure below;

67gn = 3417 @ 61,6 psi (.5 moa, includes two foulers, otherwise .25 moa)

68gn = 3461 @ 63,7 psi (.4 moa - bolt lift stiff on one shot)

69gn = 3532 @ 68,0 psi (.5 moa - stiff bolt lift)

140gn Berger, OAL 3.1", CCI-250, Win brass, seated to lands, average MV and psi below;

66gn = 3134 @ 55,2 psi (.6 moa, includes two foulers, otherwise .3 moa)

67gn = 3210 @ 58,3 psi (.5 moa - bolt slightly stiff on two shots)

68gn = 3252 @ 63,4 psi (.6 moa - bolt stiff every shot, some real stiff)

Start low and work up to these loads looking for pressure signs, these are max loads in this gun.

At 3417 fps, the 123gn Scenar with a BC of .574 ballistically out performs the 140 Berger at 3175 fps with a BC of .63, anyone else use these at the faster speeds and found the same? 123's shot about 1 moa flatter at 200 yards than the 140.