I never gave a range report on the Monarch ammo from a couple weeks ago. Monarch shot great through a Glock 19, Sig P365 and even the finicky Taurus G3C. The Maxxtech ammo, however, had several light primer strikes in the Taurus. The Glock and the Sig shot the Maxxtech just fine.
I would say the Monarch Ammo is good stuff. Shot 250 rounds and not a single issue in 3 9mm's.
I will not buy the Maxxtech again, however. Noticed some of the primers were recessed too low in the casing. Not flush. Monarch looked perfect.
I picked up some Blazer Brass a few weeks ago. Haven't shot it yet. A couple people that went to the bowling shootout (range has a bowling pin competition every week) and several people were shooting Blazer Brass. Didn't see any issues with it. Plan to put a couple hundred rounds of this through the Ruger RXM shortly.