I’ve only used them in the 30-30 so far. Yes they do require a little more effort to seat. They been reliable so far given a small sample.
Yes they do show some markings from being seated but not all the time or worse than the Fed 210.
WRE in virgin Starline 30-30
Fed 210 in virgin Silver...
A lot of bullet and cartridge combos I work with have very little published data. I start with QL to find a starting point and work up in 1/2 gr or 1 gr depending on case size.
Last fall I shot a buck at 150 yds with my 375 Wby with the 330gr MTH from Cutting Edge. That bullet would make most 375’s a long range rifle.
Strelok screen shot of that bullet in my 375 Wby
I’ve found the Barnes 250gr TTSX and Speer 270gr easy to find an excellent load in my 375 Wby.
When you find some brass , take care of it as it’s impossible to find.
Power was restored here at 10 this morning. Our biggest issue here in spring is the frost is slow to go out and water seeping into basements. 2+ inches of rain just makes that problem worse.