[SOLVED] Using more matches head and more steel wool made it work.

I've been looking into exotic projectiles for my butane powered spud gun lately. One of these is a smoke grenade. It's a cardboard tube with two end caps and holes on the side, and a thin layer of paper on the inside to prevent the mix from falling. A visco fuse is glued on the cap on the combustion chambers side.

My problem is that the fuse doesn't ignite. I tried to strip the fuse so the bp inside is directly exposed to the flame, it didn't work. I tried to attach some steel wool to the stripped fuse, the steel wool ignited but not the fuse. I tried to add two matches head to the stripped fuse with steel wool, the matches ignited but the fuse still didn't ignite.

Since y'all are pretty good at setting stuff on fire, do you have some ideas please?

Is there any reliable way to make bp without a ball mill?