| 400NitroExpress |
| (.400 member) |
| 14/12/07 07:13 AM |
Re: building a DR on a CZ SXS action
|
Quote:
In double rifle speak we use tons of pressure.
No we don't, and I wish people would stop doing it, because it's so obsolete that it's virtually useless.
Quote:
Dropping the velocity back to 1850 FPS will reduce you pressure to about 10-12 tons and work fine for just about any thing short of a charging elephant.
At best, that's a stab in the dark, because there is no way to measure it. The base crusher guns used to measure it never existed outside of England, and even those have been obsolete since Britain converted to measuring chamber pressure upon joining CIP 27 years ago. Piezo transducer measurement of chamber pressure is what is used today and how all of the DR cartridges are standardized now. Pressure tested handloading data in PSI is available for most cartridges now, and the modern systems are a great deal more accurate, which makes the data infinitely more valuable in double rifle applications.