Hello All, Just can't believe that I went through 600 rounds after buying my first GLOCK 19 start of this year. Talk about 'trigger happy'.. Today in the evening, I bought Winchester 9mm value pack (100 rounds) at Walmart for $22.00. Anyone knows if there are cheaper rounds available than these?? Also, what do I buy for as self defense or 115gr good enough? Cheers Sandy.