Tips and practical guidelines for reloading
- Always choose a propellant burn rate for at least 85% case fill.
- Peregrine bullets create extremely low shot start pressure, faster burning powders are normally the better option
- Make use of our comparative burn rate chart to compare products from different propellant manufacturers
- Always follow safe reloading practices
- Work with only one propellant at a time and keep all others away from the reloading table
General burn-rate comparison for South African manufactured propellants.
For many years Reinmetal Somchem propellant was the only available product for reloading in South Africa. Here is a very abbreviated summary of the rifle powders with comparable alternatives:
- S321 Very fast burning, comparable to N530 and RL-10X
- S335 Fast burning, comparable to N130, Norma 202, IMR3031
- S355 Medium burning, comparable to N540, Varget
- S365 Medium to slow burning, comparable to N505, IMR 4350
- S385 Slow burning, comparable to N560, H4831
- B12.7 Slow burning, comparable to N570, Retumbo
Reduced barrel length rifles
In general rifles with shorter barrels do not burn up all the propellant. It may be better to select a faster burning powder for shortened barrelled rifles. Faster burning propellants burn more efficient and produce increased performance.