N150 Loads for 168

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Deleted member 10043

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How much N150 are people using and what is your muzzle velocity? I'm switching from RE-15 and Sierra's manual doesn't show much difference in the amount used between the two.

Sierra's manual shows 42 grains for 2600 fps. I actually use 43.7 RE-15 to get 2600 fps.

Sierra's manual shows 42.5 grains of N150 to get 2600 fps.
 
Load development
Rifle: Remington M40 SSA .308; 24" barrel; target @100 yards; SMK 168; conditions good with no wind - 26.23 in., 70 deg F., 68% humidity.

42.5= 2485 STdev=11

43.0= 2510 STdev=2

43.5= 2530 STdev=6

44.0= 2566 STdev=5

44.5= 2598 STdev=5

All groups <1 MOA (4 shot groups). Best group 43.0 grains @2510 avg. fps.
 
Sierra Matchking 168 Vhitavuori N150 40 Federal Match 210M Lapua, Seven 1.622 2.8
Sierra Matchking 168 Vhitavuori N150 40.5 Federal Match 210M Lapua, Seven 1.622 2.8
Sierra Matchking 168 Vhitavuori N150 41 Federal Match 210M Lapua, Seven 1.622 2.8 2433 AVG
Sierra Matchking 168 Vhitavuori N150 41.5 Federal Match 210M Lapua, Seven 1.622 2.8 2452 AVG
Sierra Matchking 168 Vhitavuori N150 42 Federal Match 210M Lapua, Seven 1.622 2.8 2495 AVG
Sierra Matchking 168 Vhitavuori N150 42.5 Federal Match 210M Lapua, Seven 1.622 2.8 2536 AVG
Sierra Matchking 168 Vhitavuori N150 43 Federal Match 210M Lapua, Seven 1.622 2.8 2551 AVG
Sierra Matchking 168 Vhitavuori N150 43.5 Federal Match 210M Lapua, Seven 1.622 2.8 2561 AVG
Sierra Matchking 168 Vhitavuori N150 44 Federal Match 210M Lapua, Seven 1.622 2.8 2600 AVG

All my data for that load. 18.5" Gas Gun
 
Shit, go to a new Savage 12 and the loads are much different than my Remington M700 (44.5 grains = 2600 fps)

With the Savage 12

N150 = 44.0 grs.

Bullet = 168 SMK

Muzzle Velocity = 2760 fps

COAL = 2.81"

And there is no negative signs of the brass be effected by this.