Dealer spawns bullets?

[サムライウルフ産業]

So, two rounds are loaded. I shoot myself for the first one and the achievement pops that I got the 50/50 for getting the dud. So, I proceed to shoot him I hit him for one. He chains me up and then proceeds to shoot himself once racking a magical dud and then unloads two live rounds in me thus ending my game.

Mind you the "round" didn't end where new set of rounds were racked in was still going off the first one which was only two. This is the second time I have experienced the dealer "pulling bullets out of thin air." Anyone else have this issue before or is this something that is well known and I am just a new and haven't learned yet.

[RedSage]

You either misremembered how many rounds were chambered at the beginning of the round, are misunderstanding what the "50/50" achievement means (it's not just 1 live : 1 blank, it also counts 2:2, 3:3 and 4:4) or experienced some super rare glitch I've never heard of.

[サムライウルフ産業]

Originally posted by RedSage:

You either misremembered how many rounds were chambered at the beginning of the round, are misunderstanding what the "50/50" achievement means (it's not just 1 live : 1 blank, it also counts 2:2, 3:3 and 4:4) or experienced some super rare glitch I've never heard of.

I am highly positive I did not misremember rounds because there was only two singular shells in our first round. This also is the second time in a different experience I have seen him just pull bullets out of thin air.
When there was a full set of rounds (4 Live and 4 Blanks) we went through them normally I hit him twice and on his last life he uses every item he has then shoot's me with another 3 rounds (mind you after he was done racking a round with a beer and losing another live round so in that sense there should've been just one live left.) so unless he can reset the gun and put bullets in while you are getting revived I think my game glitched.
The achievement never came before when I had even odds before but maybe that was just game bugging for me cause your explanation for achievement makes sense. It only popped for me when I got two rounds and shot at myself with blank. Regardless, I appreciate you answering this for me and explaining more though!