HunterGreen,
Seeing you already have the two powders mentioned I would use H4831 with your 30" barrels.
If you can get some Retumbo that would be even better. Check out Hodgdon's load data site both chamberings. They list their highest velocities with Retumbo which is also an extreme powder.
Seeing you already have the two powders mentioned I would use H4831 with your 30" barrels.
If you can get some Retumbo that would be even better. Check out Hodgdon's load data site both chamberings. They list their highest velocities with Retumbo which is also an extreme powder.
