Power Pro 300-MP Load Data: 69 Published Loads in 4 Cartridges
Empirical Precision indexes 69 published loads for Power Pro 300-MP (Alliant) across 4 bottleneck rifle cartridges from 5 reloading sources, spanning projectile weights from 40 gr to 300 gr.
Published Loads69
Cartridges4
Sources5
Bullet Weights40–300 gr
Always start low and verify against the original published source before loading.
Powder Data Sheet
- Manufacturer
- Alliant
- Grain Type
- Spherical / Ball
- Bulk Density
- 900 kg/m³
Burn Rate Position
Position #15 of 145 rifle powders on the Empirical Precision relative burn chart (ordered fastest to slowest).
- Nearest Faster
- IMR 4227, Accurate No. 11FS
- Nearest Slower
- Lil'Gun, Accurate 5744
A burn chart is a guide, not load data.
Cartridges Published (4)
| Cartridge | Published Loads |
|---|---|
| 338 ARC | 46 |
| 300 Blackout | 20 |
| 458 SOCOM | 2 |
| 22 Hornet | 1 |
Sources Publishing Data (5)
| Publisher | Published Loads |
|---|---|
| Hornady | 46 |
| Speer | 18 |
| Barnes | 2 |
| Sierra | 2 |
| Alliant | 1 |