I have some loose CCI brass 9mm 115 gr in an ammo can and I just bought 500 rounds of Aguila 9mm 115grn. I was wondering if it would matter at all if I dumped the 500 rounds in with the rest of the CCI ammo. Does it really matter?
Not a bit.
I would think that if you had a ammo related problem you would you would be making it a little bit harder on yourself having to sort, but other than that I don't see a problem.......
Personally, since I reload, I try to keep them separate. Place the smaller amount into a ziplock bag , then in with the other ammo.
Otherwise , it shouldn't be a problem.
Keep it seperate. It is easier to trouble shoot when you know which ammo is not working for your gun. Same with accuracy. How do you know from shot to shot what you POI will be?
One time I mixed together 10 different kinds of 9mm to shoot in a Colt 6450 just to see what would happen and they all fired fine.
However if your gun is having issues, I would not mix them up.