Paying tribute to Silver Rings, and his format:
Firing from a Uberti w/ 28" barrel, Altitude 5975, Temp 17.9 F, barometer 29.56
38.0 grs. IMR 4895, Jamison cases, Fed 210 primers, 300gr Meistercast bullets
Hi- 1337
Lo- 1258
Avg.- 1295
SD- 27.3
Grp size 1" to 1 1/2" (5 shot groups) @ 50 yards, 15 rds fired
... and as always, not tested for pressure, use @ your own risk