.300 Savage: Reloads Vs Factory loads

.300 Savage model 99, gun is 60 to 65 years old. I compared my reloads to factory loads. Factory: "Hornady Superformance, 300 Savage 150 gr. SST, #82221" My Reloads: Bullet: Hornady SST. 30 CAL .308" 150 gr SST #30303 Case: Hornady Primer: CCI 200 Powder: IMR 4895 @ 39.0 Gr. C.O.L.: 2.570" Distance: 100 yards