I'm sure this has been covered before, but; Has anyone had any luck opening the crimp on the cheap bulk packs and replacing it with an equal weight payload? I've got some 1oz shot loads that fit my Lee 1oz slug really really well. A 20g nitro card and fiber wad puts the slug nose just above the petals so they don't get damaged when fired. I have no earthly use for light shot. I don't hunt anything that 7.5 shot would be suitable for so if it don't work, I ain't out anything.
Thoughts? If it works, it'd actually save me a bit on buying hulls, primers, powder and wads separate and trying to load them.