Originally Posted by
Point-Man
Just using H4895 as an example. But that is what I use. My manual shows 46.4 gr of H4895 @2600fps. I have no idea what what kind or how much powder he used. I would start pulling bullets and weighing everything .Just saying I would do some checking before I dump the powder. OP doesn`t say how old he thinks this ammo may be. If the rounds aren`t corroded and the powder is not clumped and smells like powder , more than likely its good. I shot some 8x56r head stamped 1938 last Sunday. Shot fine. A lot depends on how the ammo is stored.
On most ammo that fails to fire is because of a dead primer not bad powder.