Most folks don't know a dang thing about history...Flintlocks were invented in the early 1600s...Balls were already in use and had been at use at least 100 years before in matchlocks and wheel locks...Minies were invented in the mid 1850s...So balls were in use longer than any other projectile...Flintlocks were used as a primary source to ignite powder longer than any other ignition system...

Yep, I have used them in my flintlocks since the mid 1970s...I have a custom .40 for small game and a custom .54 for larger game...They work well...