Thread: Load issues (blowback) 454 Casull

Originally Posted by thatguy

Thanks for confirming that. Wonder what sort of load they would recommend?

Greetings Again,
I am not sure what projectile you are using as you just say RNFP. The maximum load you quote is for the 250 grain Barnes X projectile. These are solid copper alloy and are very hard. This requires a considerable reduction in powder charge. If you are using a lead core projectile then you would be better to use the Hodgdon data for the 260 grain Freedom Arms projectile which gives a low load of 34 grains of 296. So if you are using a lead core projectile your loads are 5.5 grains under the minimum load. This is dangerous country and I suggest that if you have any unfired loads that you not fire them and pull the projectiles to make them safe.

If you go to Lil gun Hodgdon has loads that approach the 296 loads at much lower pressure. Your Rossi is a derivative of the Winchester 92 and may be marginal in strength compared to the revolver that the data was developed for so Lil gun may be your best choice. The start load for the lead cored 260 grain of 33.4 grains of Lil gun giving 1,744 fps in their test barrel would be a good place to start. This is more velocity than you are likely getting from your current load.
Feel free to ask any questions.
Grandpamac.