Are You just plinking, or practicing defensive shooting?
I love going to the range and just smelling the Gunpowder, so 300-400 rounds.
About once a month an old buddy of mine and his wife go do defensive shooting. It;s a little game we call surprise.
Whoever's up to shoot, turns away from portable targets, as they're moved around. You're started when told, and turn to engage Approx. 3 targets.
This kind of practice is similar to Hogans alley, and can really be an effective training aid. This way you will get a lot more effective practice, with a lot less cost.
This kind of practice, I usually go through 80 to 100 rounds each outing.
P.S. It' a blast, pardon the pun.
God bess
John C.