| Cartridge | 7mm Remington Magnum |
| Model | BA 50c |
| Manufacturer | Berger |
| Model | VLD Hybrid |
| Weight | 180.000 Grains |
| Lot# |
| Manufacturer | Hodgdon |
| Model | IMR7977 |
| Charge Weight | 72.20 Grains |
| Lot# |
| Manufacturer | CCI |
| Model | 250 Mag Rifle |
| Thickness | |
| Lot# |
| Manufacturer | Norma |
| Model | 7mm Rem Mag |
| Length | 2.490 Inches |
| Lot# |
| Length to Ogive (LTO) | |
| Overall Length (OAL) | |
| Bullet Length | |
| Projection Length |
| Velocity: (feet per second) | 2960 Fps |
| Chronograph, (brand & model) | |
| Chronograph Distance |
IMR7977 performs a lot like Retumbo.
Similar velocity (within 20 fps at same charge wt.).
I saw better SD and group sizes with IMR7977.
Groups usually between ½ and ¼ MOA..