As for shooting at the CHL class, they don't grade you. They just make sure you can keep it on the paper and hit a man silhouette at ranges up to 15 yards and you shoot a total of 50 rounds. They did not have us shoot any really rapid fire sequences. We had some load 5 and then fire 5 rounds.
I had not shot anything but a 22 cal pistol for about 15 years and used a range gun and had no problems. Now I get to shoot about once a month and will burn 200 rounds.
One thing you do need to check after you have run 200 rounds or so through the pistol is run one partial magazine of you personal protection rounds (yes they are expensive, but necessary) to make sure your pistol will feed them OK and not malfunction.
Best place I have found for the 9mm rounds is Walmart , Federal ball rounds. Just under $10 for 50.
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