I'll play too....
My loads are safe in my weapon/s the way I load them. Never use loading data from an unconfirmed source and even double check that.
Cal Bullet B-weight Powder P-weight M-Velocity weapon date of test OAL
*300 V-Max 110 630 17.2 2328.5 DSA 10/9/2012 2.010in
300 V-Max 110 LtGun 18.3 2204.5 DSA 10/9/2012 2.010in
300 OTM 125 H110 17.8 2131 DSA 5/8/2012 2.182in
300 M2 GI 147 H110 16.6 1945 DSA 5/8/2012 2.065in
*300 M2 GI 147 LtGun 15 1870 DSA 9/22/2012 2.160in
300 InterBond 150 H110 16.6 1908.2 DSA 10/9/2012 2.069in
And my all time fave:
*300 Lt cut 30 130 2400 15.1 1959.35 DSA 6/26/2015 2.024 in Cast, sized .311, powder coated, sized
*300 Lt cut 30 130 LtGun 17.5 2124.444444 DSA on going 2.03 in Cast, sized .311, powder coated, sized
**300 Lt cut 30 130 630 15.3 1978 DSA 7/4/2014 2.024 in Cast, sized .311, powder coated, sized
Notes: An '*' marks the most accurate loads, velocities are at 10 feet and not less than 15 samples are needed for the velocity to be displayed. The date listed is the first sample date. barrel is 16 inches and I have no idea about the diameter of the gas port. My brass is mostly mixed GI, Lake City, 5.56 brass that I cut down and formed. I normally get 25 and more loadings in .300 Black, on top of how ever many times the brass was loaded as .223/5.56. All primers are CCI 400s.
With my weapon, the faster the bullet, the greater the grouping. The listings are for the best groupings, not velocities. I have a fair amount of Olin 630. It hasn't been made for years and years. It burns hot, has some temp spread but is far from the reported charge sensitive nature of 296/H110. (All though, I have never had any problems with 296/H110.)
Load with care,