Why do people shoot into wood & think that is some measure of a bullet??
The real issue with plated bullets is they are mor fragile during the reloading process, than jacketed. Don't bell enough, you knick the base & accuracy goes to ****. Over crimp & the accuracy goes to ****. I've seen it dozens of times in friend reloads.
Your loads are well within the vel range for plated. Yet crank them to 1350fps or so, accuracy again goes to **** as the plating starts to strip under rpm in the bbl. I've proved this often loading for my 357sig. Then I have never shot them into any wood.

__________________
NRA Cert. Inst. IDPA CSO