| 3DogMike |
| (.400 member) |
| 17/04/17 12:46 AM |
|
Re: Black powder to Nitro
|
Quote:
A friend has a Daniel Fraser 450-400 3 1/4 that is NOT nitro proved. Yet, he fires his loads of 3031 to nitro velocities as well as original Kynoch ammo. I wouldn't but he is happy doing it and has yet to have an issue. I agree with Curl, just a matter of time.
+1 "just a matter of time"
The above for 2 reasons:
1) blithly shooting full nitro loads in a BP proved non-nitro rifle
2) it is reasonably well established that IMR 3031 can be very erratic pressure wise in large case Express type cartridges. Back in the Jack Lott and Elmer Keith era people used 3031 because it fairly well duplicated the burn rate of Cordite, unfortunately some guns were blown up or wrecked by unexplaned high pressure excursions with this powder. In the interveneing years the knowledge base has expanded and there are MUCH more suitable powders. IMR3031 in a large case capacity NITRO EXPRESS rifle is a risky choice.
- Mike