I have a 12+# '74 Sharps that I only load BP loads for, pushing its 550g cast bullets.
Then, a couple of Springfield Trapdoors, both a Carbine and a Rifle that also get the BP treatment with (the Carbine being loaded w/405g Gov't bullet on top of 55g loads and the Rifle getting 70g of powder and either the 405g or 500g Gov't bullets)
And finally an '86 Winchester lever rifle that I load 405g cast RNFPs out of on top of Smokeless.
BTW, that Crescent Buttplate on the Winchester really JOLTS you when it gets touched off...Ouch!!!