huntinco
User
I hope this helps you 300Ultra guys. Aside from the Retumbo group , I'm sure you could improve on some of the groups if you seat the Bergers further into the lands
Load Data 5-22-08
Temp 51-55 Humidity 31.5%
Christensen Arms Custom 300 Ultra Mag
Shilen Select Match Grade 1-9 Twist
Leupold VX-III 4.5-14x50
5 shot group with 1 fouling
Berger 175-VLD seated .001 into the lands.
Range 108 yards
Powder Avg Velocity Vertical & Horizontal Grouping
H-1000 "88.5gr" 2902 1.340 0.710 OK!!
RL-25 "92.5gr" 3151 2.480 1.975 SUCKS!!
Retumbo "97gr" 3221 0.295 0.159
SUPER GROUP (good luck improving on this)!!!!
N-560 "84gr" 3011 1.489 0.731 OK!!
Magnum "98gr" 3215 0.631 0.699 Excellent!!
IMR-7828 "87gr" 3152 2.130 1.060 SUCKS!!
IMR-4350 "80gr" 3186 0.946 0.995 Good!!
Sierra 180 HPBT Match seated .005 from the lands
IMR-4350 "80gr" 3101 0.764 0.555 Excellent!!
Load Data 5-22-08
Temp 51-55 Humidity 31.5%
Christensen Arms Custom 300 Ultra Mag
Shilen Select Match Grade 1-9 Twist
Leupold VX-III 4.5-14x50
5 shot group with 1 fouling
Berger 175-VLD seated .001 into the lands.
Range 108 yards
Powder Avg Velocity Vertical & Horizontal Grouping
H-1000 "88.5gr" 2902 1.340 0.710 OK!!
RL-25 "92.5gr" 3151 2.480 1.975 SUCKS!!
Retumbo "97gr" 3221 0.295 0.159
SUPER GROUP (good luck improving on this)!!!!
N-560 "84gr" 3011 1.489 0.731 OK!!
Magnum "98gr" 3215 0.631 0.699 Excellent!!
IMR-7828 "87gr" 3152 2.130 1.060 SUCKS!!
IMR-4350 "80gr" 3186 0.946 0.995 Good!!
Sierra 180 HPBT Match seated .005 from the lands
IMR-4350 "80gr" 3101 0.764 0.555 Excellent!!
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