Swampman
Old Fart
I wouldn't worry too much about slight crimping marks left on your cast bullet reloads.
The attached pic shows jacketed and plated bullets pulled from ammo loaded by either commercial manufacturers or government arsenals. My apologies that there are no cast or swaged lead bullets, but when I find those, they're generally thrown into the casting pot as soon as I pull 'em.
As far as I can tell, none of the projectiles pictured were manufactured with any sort of cannalure, the "rings" on the bullets all appear to have been formed during the crimping process.
Keep in mind that this ammunition was loaded by professionals with arsenal quality equipment, presumably using cases and bullets not only from the same manufacturer, but more than likely from the same production lots. Jackets appear to be made of everything from almost pure copper to mild steel, all of them much harder and more resistant to deformation than the lead and paint of your oversized handloaded lead bullets.
If major manufacturers aren't able to keep from pressing makeshift cannalures into their own properly sized jacketed bullets while using their own cases, what chance do you have using your much softer, oversized bullets and unsorted cases from various manufacturers?
Worry about reliability and accuracy, performing destructive testing to uncover "problems" will just eat into your loading and shooting time.
Putting lots of rounds downrange while striving to make each shot a learning experience will do a lot more for your accuracy than hours spent agonizing about a problem that doesn't even exist.
If little pseudo crimps in the sides of loaded bullets indicate poor quality, everyone better toss out all their Speer Gold Dots because they're one of the worst offenders among current production ammo.
The attached pic shows jacketed and plated bullets pulled from ammo loaded by either commercial manufacturers or government arsenals. My apologies that there are no cast or swaged lead bullets, but when I find those, they're generally thrown into the casting pot as soon as I pull 'em.
As far as I can tell, none of the projectiles pictured were manufactured with any sort of cannalure, the "rings" on the bullets all appear to have been formed during the crimping process.
Keep in mind that this ammunition was loaded by professionals with arsenal quality equipment, presumably using cases and bullets not only from the same manufacturer, but more than likely from the same production lots. Jackets appear to be made of everything from almost pure copper to mild steel, all of them much harder and more resistant to deformation than the lead and paint of your oversized handloaded lead bullets.
If major manufacturers aren't able to keep from pressing makeshift cannalures into their own properly sized jacketed bullets while using their own cases, what chance do you have using your much softer, oversized bullets and unsorted cases from various manufacturers?
Worry about reliability and accuracy, performing destructive testing to uncover "problems" will just eat into your loading and shooting time.
Putting lots of rounds downrange while striving to make each shot a learning experience will do a lot more for your accuracy than hours spent agonizing about a problem that doesn't even exist.
If little pseudo crimps in the sides of loaded bullets indicate poor quality, everyone better toss out all their Speer Gold Dots because they're one of the worst offenders among current production ammo.