I have an lc9 that I have run maybe 300 rounds through. In have been having issues with the spent casing not being extracted before it feeds a new cartridge. It happened on my last two trips to the range. My previous trip it would jam about every third round. I did a thorough cleaning of the firearm after that trip. Last weekend, it cycled 6 magazines before it failed to extract. Could it just be a new gun being broken in or something more involved? I am using factory loaded brass. Is there any bullet weight that performs better in the lc9? Thanks in advance.