From two articles in the 2001 Shooting Times Annual titled
45 ACP and .223 Autoloaders.
Sig P220
10,000 Rounds Total
All Black Hill Ammunition 230 Gr Ball
Malfunctions
FTFeed @ 3322
FTEject @ 4723
Stovepipe @ 5352
FTFeed @ 6443
Misfire @ 4104 (overlength round)
Broken Trigger Pivot @ 6028
10 round groups from Ransom Rest @ 25 yards
Accuracy at the beginning 2.51"
Accuracy at the end 1.94"
Ruger P97
5,000+ Rounds Total
Made up of:
4,000 Rounds Winchester 230 Gr Ball
100 Rounds each of:
CCI 200 Gr TMJ
Cor-Bon 165 Gr JHP +P
Federal 180 Gr JHP
Hornady 185 Gr JHP
PMC 230 Gr JHP
Remington 185 Gr JHP
Golden Saber 185 Gr HP
Winchester 170 Gr JSP
Winchester 230 Gr SXT
Plus additional ammo used for accuracy testing @ 1000 round intervals.
No Failures of any kind.
8 round groups from a sandbag rest @ 25 yards
Accuracy at the beginning 2.25"
Accuracy at the end 2.18"
45 ACP and .223 Autoloaders.
Sig P220
10,000 Rounds Total
All Black Hill Ammunition 230 Gr Ball
Malfunctions
FTFeed @ 3322
FTEject @ 4723
Stovepipe @ 5352
FTFeed @ 6443
Misfire @ 4104 (overlength round)
Broken Trigger Pivot @ 6028
10 round groups from Ransom Rest @ 25 yards
Accuracy at the beginning 2.51"
Accuracy at the end 1.94"
Ruger P97
5,000+ Rounds Total
Made up of:
4,000 Rounds Winchester 230 Gr Ball
100 Rounds each of:
CCI 200 Gr TMJ
Cor-Bon 165 Gr JHP +P
Federal 180 Gr JHP
Hornady 185 Gr JHP
PMC 230 Gr JHP
Remington 185 Gr JHP
Golden Saber 185 Gr HP
Winchester 170 Gr JSP
Winchester 230 Gr SXT
Plus additional ammo used for accuracy testing @ 1000 round intervals.
No Failures of any kind.
8 round groups from a sandbag rest @ 25 yards
Accuracy at the beginning 2.25"
Accuracy at the end 2.18"