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Old 10-01-2012, 20:39   #11
noylj
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Join Date: Jul 2010
Posts: 321
Look at the two bullets. A FMJ-RN has a round nose that is chopped of for a FMJ-FN or JHP. The extra weight, from the missing RN and for the HP, goes into the base of the bullet. So the bearing surface is longer. Unless the bullet has a very unique ogive, if you load a FMJ-RN and a JHP to maximum COL (so bullet just touches the lede/rifling), the JHP will have a shorter COL (no RN sticking out).
Every bullet will perform best if you determine the COL that is best in your gun.
Note: TMJ are plated bullets.
Here is my compilation. COL is the minimum COL that applies to the load.
Bullet Weight Powder Weight Velocity Note P.F. COL
FMJ 124 Unique 3.7 900 Start 112 1.040
Hdy HP-XTP, FMJ, FMJ-FP 124 Unique 4.0 900 Start 112 1.050–1.150
JSP 125 Unique 4.1 859 Start 107 1.120
FMJ 125 Unique 4.1 1000 Start 125 1.120
FMJ 124 Unique 4.1 950 118 1.040
FMJ 124 Unique 4.1 1000 124 1.040-1.090
FMJ 125 Unique 4.6 1050 131 1.090
Spr SP 125 Unique 4.7 887 Start 111
FMJ 124 Unique 4.7 1025 127 1.150
FMJ 124 Unique 4.7 1050 130 1.040
FMC 124 Unique 4.8 1100 Max 136
FMJ 124 Unique 4.9 1075 133 1.150
Hdy HP-XTP, FMJ, FMJ-FP 124 Unique 5.0 1100 Max 136 1.050–1.150
Berry's P-HP 124 Unique 5.0 1050 130 1.085
HP-XTP 124 Unique 5.0 1093 136
FMJ 124 Unique 5.1 1125 140 1.150
FMJ 125 Unique 5.1 1100 138 1.040-1.090
Spr SP, GD-HP, TMJ, XTP 124 Unique 5.2 1080 Start/Accurate 134 1.120-1.135
Spr SP 125 Unique 5.2 987 123
JSP 125 Unique 5.3 1118 140 1.120
JSP 125 Unique 5.5 1061 Start 133 1.125
FMJ 125 Unique 5.6 Start 0 1.142
Sie JHP 125 Unique 5.6 1170 146
Frontier FMJ-FP 124 Unique 5.7 1164 144 1.150
Spr SP, GD-HP, TMJ 124 Unique 5.8 1180 Max 146 1.120-1.135
Hdy FMJ-FP 124 Unique 5.9 1200 Max 149 1.100
JSP 125 Unique 5.9 1192 Max 149 1.120
Spr JSP 125 Unique 5.9 1209 151
JSP 125 Unique 6.0 1168 not max in BHP 146 1.090
Hdy FMJ-FP 124 Unique 6.0 1167 Max/Acc. 145 1.120
Hdy FMJ 124 Unique 6.0 1170 Max 145
Hdy FMJ-FP 124 Unique 6.0 1196 Max 148 1.120
Spr SP 125 Unique 6.0 1139 Max 142
Hdy FMJ-FP 124 Unique 6.0 1167 145
Hdy HP-XTP 124 Unique 6.0 0 1.100
Spr GDHP 124 Unique 6.0 0 1.115
FMJ 125 Unique 6.2 1170 Max 146 1.090
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