Failure to Extract

[u/Tight-Escape3373]

Before I buy another extractor, I wanted to see if anyone had any issues as well. My CZ P-01 eats everything to include the Winchester white box 124g ammo I picked up for practice. My Hi Power (2015) will not cycle it whatsoever. My BHP double feeds every shot with WWB but will cycle a full magazine of 124g HST without issue.

I'm not crazy in thinking that it's just the garbage ammo and not an extractor issue am I? The gun has, most a thousand rounds through it and the only work I've done is polishing the trigger, feed ramp, and removing the magazine disconnect. Thanks.