Hello Keith, I have used a nitro card beneath the wad ,one to take up space,and two to stop powder migration.I have never used a wax filled wad.Might get wax built up on the bore possibly?I also use remington wads.Talking with Tom Armbrust,who I had do some testing for me claims the BP pt1044 wad will raise the pressure higher.There is also an old style and new style sp10 wad.The old style wad has thinner webbing in the crush section than the new wads.Hard to find the old ones ax they got used up.I have a 1 3/8 ounce and 1 1/2 ounce lead load that Tom and I worked up.They are lower pressure with decent velocity.I shoot them in my 1889 Lefever with Damascus barrels.Also have a couple bismuth loads for it.I know the remington wads are hard to find right now..I'm always searching the gun shows for them.
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