Well I ran some IMR 4831 thru my 25-06 5he other day to see just how it compared to the 7978. Everything is the same as the great I did with the 7977 except the powder. Wasn't real happy with the speed it produced and accuracy wast all that great either.
Here's what I ended up with.
1. 49gr IMR 4831- 2908fps / 2923fps / 2977fps
2. 50gr IMR 4831- 3012fps / 2990fps / 3019fps
3. 51gr IMR 4831- 3166fps / 3070fps / 3080fps. ( online book MAX)
4. 51.5gr IMR 4831- 3145fps / 3111fps.
5. 52gr IMR 4831- 3160fps / 3142fps. This is where I stopped.
There was room to keep going with this powder I had nothing that indicated pressure issues. Little strange was that the 115 nosler ballistic tip max out in the reloading data post on the nosler site at 52gr of IMR 4831..
Here's what I ended up with.
1. 49gr IMR 4831- 2908fps / 2923fps / 2977fps
2. 50gr IMR 4831- 3012fps / 2990fps / 3019fps
3. 51gr IMR 4831- 3166fps / 3070fps / 3080fps. ( online book MAX)
4. 51.5gr IMR 4831- 3145fps / 3111fps.
5. 52gr IMR 4831- 3160fps / 3142fps. This is where I stopped.
There was room to keep going with this powder I had nothing that indicated pressure issues. Little strange was that the 115 nosler ballistic tip max out in the reloading data post on the nosler site at 52gr of IMR 4831..