I see that RST has light loads that only seem to be reduced payload, 7/8oz 16 ga shells.
I'd probably go with this load, are they 2 1/2 inch? I can't tell you what the chamber pressure is, but I'd bet either one of those Rem. Factory loads is fairly hot. Same for factory Federal, Winchester etc. Generally speaking, higher pressure shotshell loads tend to be more consistant, are more likely to go bang in cold weather, and reliably cycle the few gas autoloaders that are out there (in 16g). Obvoiusly, this is important for a manufacturer, but may not be ideal for an older double. 2 1/2 inch factory loads would likely be loaded to a lower pressure than 2 3/4 inch.
