load was Bayou Bullets 125gr PC LRN, 4.0 & 4.2gr Bullseye; fired 5 of each loading, but not sure
which load made the marks. bullet is more cone shaped, not sure of OAL, a bit less that some JHP's i've been running ok
patterned great, but found the fired cases with these marks on 3 of 10;
primers & rest of case ok, black powder & marks only on one side of case;
loaded great from factory mags.
Gun is Ruger Security 9 compact with around 100 rounds thru it;
looked in the chamber & didn't see anything.
what sez the hive before i load a bunch more (like the 4gr load better)