What diameter bullets are you shooting?
That doesn't matter. Measure your own throats. The new guns are tighter and more consistent chamber to chamber, mine measured out to right around .428 while some older 29s measure out around .430+
I size to .429 and let 'er rip with a dose of H110. The 230-265gr range is the happy spot for me. If you need more power, get an X-frame.![]()