Does it matter which one is used 209 or 209A? Have a cousin in need for his muzzleloader. TIA

Deans

~Molɔ̀ːn Labé Skýla~

“Fear thou not; for I am with thee: be not dismayed; for I am thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness.”
ISAIAH 41:10