My velocities are not matching up very good at all to any of my 3 reloading books (Lyman, Hornady, other) for the Hornady VMax 55gr and H335.
I'm using Standard WSR primers and setting my COL to 2.250". Cases are 223 Remington and bumped back 0.002" from my chamber.
I'm shooting a Bushy Varminter 24" 1:9 twist.
String 3, which I think is still a little light, is "just" starting to flow primers, raising a little around the firing pin hole. I had a lot more data but lost it somehow but it all jived with what is below.
Any ideas?
Richard
String #: 1
High Velocity: 2818
Low Velocity: 2749
Average Velocity: 2785
Extreme Spread: 69
Standard Deviation: 24
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 21.6
Velocity # Velocity Power Factor Foot/Lbs
1 2818 154.990 969.720
2 2783 153.065 945.781
3 2777 152.735 941.708
4 2777 152.735 941.708
5 2749 151.195 922.813
6 2807 154.385 962.164
------------------------------------------------------
String #: 2
High Velocity: 2879
Low Velocity: 2836
Average Velocity: 2860
Extreme Spread: 43
Standard Deviation: 16
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 22.4
Velocity # Velocity Power Factor Foot/Lbs
1 2873 158.015 1007.942
2 2861 157.355 999.540
3 2849 156.695 991.172
4 2861 157.355 999.540
5 2842 156.310 986.308
6 2879 158.345 1012.156
7 2836 155.980 982.148
8 2879 158.345 1012.156
------------------------------------------------------
String #: 3
High Velocity: 2911
Low Velocity: 2867
Average Velocity: 2890
Extreme Spread: 44
Standard Deviation: 18
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 22.8
Velocity # Velocity Power Factor Foot/Lbs
1 2892 159.060 1021.318
2 2867 157.685 1003.736
3 2911 160.105 1034.782
4 2892 159.060 1021.318
5 2867 157.685 1003.736
6 2911 160.105 1034.782
------------------------------------------------------
Factory Monarch 55gr FMJ (Academy)
String #: 4
High Velocity: 3392
Low Velocity: 3358
Average Velocity: 3373
Extreme Spread: 34
Standard Deviation: 12
Grains: 55
Velocity # Velocity Power Factor Foot/Lbs
1 3367 185.185 1384.365
2 3375 185.625 1390.951
3 3358 184.690 1376.974
4 3375 185.625 1390.951
5 3392 186.560 1404.999
I'm using Standard WSR primers and setting my COL to 2.250". Cases are 223 Remington and bumped back 0.002" from my chamber.
I'm shooting a Bushy Varminter 24" 1:9 twist.
String 3, which I think is still a little light, is "just" starting to flow primers, raising a little around the firing pin hole. I had a lot more data but lost it somehow but it all jived with what is below.
Any ideas?
Richard
String #: 1
High Velocity: 2818
Low Velocity: 2749
Average Velocity: 2785
Extreme Spread: 69
Standard Deviation: 24
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 21.6
Velocity # Velocity Power Factor Foot/Lbs
1 2818 154.990 969.720
2 2783 153.065 945.781
3 2777 152.735 941.708
4 2777 152.735 941.708
5 2749 151.195 922.813
6 2807 154.385 962.164
------------------------------------------------------
String #: 2
High Velocity: 2879
Low Velocity: 2836
Average Velocity: 2860
Extreme Spread: 43
Standard Deviation: 16
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 22.4
Velocity # Velocity Power Factor Foot/Lbs
1 2873 158.015 1007.942
2 2861 157.355 999.540
3 2849 156.695 991.172
4 2861 157.355 999.540
5 2842 156.310 986.308
6 2879 158.345 1012.156
7 2836 155.980 982.148
8 2879 158.345 1012.156
------------------------------------------------------
String #: 3
High Velocity: 2911
Low Velocity: 2867
Average Velocity: 2890
Extreme Spread: 44
Standard Deviation: 18
BULLET: 55gr V-Max
PRIMER: WSR
POWDER: H335
GRAINS: 22.8
Velocity # Velocity Power Factor Foot/Lbs
1 2892 159.060 1021.318
2 2867 157.685 1003.736
3 2911 160.105 1034.782
4 2892 159.060 1021.318
5 2867 157.685 1003.736
6 2911 160.105 1034.782
------------------------------------------------------
Factory Monarch 55gr FMJ (Academy)
String #: 4
High Velocity: 3392
Low Velocity: 3358
Average Velocity: 3373
Extreme Spread: 34
Standard Deviation: 12
Grains: 55
Velocity # Velocity Power Factor Foot/Lbs
1 3367 185.185 1384.365
2 3375 185.625 1390.951
3 3358 184.690 1376.974
4 3375 185.625 1390.951
5 3392 186.560 1404.999