I'm surprised the OP even found a box of wadcutter for sale...
Back in the day (40 years ago), you could walk into any store that sold the slightest amount of ammo, and find a box of factory .38 Special wadcutter.
About 98% of police agencies used the .38 Special or .357 magnum revolver, and most of them trained and qualified with .38 Special wadcutter or RNL rounds. My agency issued the Model 13-3 .357 Magnum, and we shot over 2000 rounds of .38 Special wadcutter in training at the academy, including qualification. We shot about 100 rounds total of .38 Special +P LHP ammo in combat courses for "familiarization". At that time, that ONE agency purchased nearly 10 MILLION rounds of .38 Special wadcutter ANNUALLY for training and qualification at the academy and throughout the field.
Today, I did a quick scan of ammoseek.com and not a single round of .38 Special wadcutter was shown from Federal, Speer, Blazer, Remington or Winchester. Major factory ammo was limited to Magtech (Brazil) and Fiocchi (USA/Italy).
Whither 9mm...