excess650 said:My .58 with Chambers lock and White Lightnin' liner was a bit slow until I opened it up from .050" to .062". It fires every time, and doesn't need picked between shots. I'm using Tom Fuller flints and ffg Goex.
You may have found a solution in increasing the amount of priming powder. Coning the outside may help.
You might try setting your flint further from the frizzen to see if it lessens the flint wear. Does the Lyman seem to need more pressure to open the frizzen vs the TC?
As for your patches, some of them are obviously blown. I found that changing to a stiffer patch lube helped considerably in this regard provided the patch material was thick enough already.
I have tried .0625, .070, and 5/64th touch holes and it doesn't seem to make much difference. I do think a RMC would be a better choice.
Yes the 'blown up' patches were probably the 90 gr load and the better looking ones are the 70 gr load.
Boy that big .54 cal and 90 grs is an impressive combo!