coyojoe is right, there really is no need to use any kind of modern centerfire nipple/primer on any side lock style rifle. If the shooter simply does his part to be sure the rifle and lock components are clean and in good working condition the common nipple and cap configuration works very well.
Please keep in mind if "poor quality" components are used expect poor results. It's really up to the end user. The archives here are full of tonnes of info, just spend a little time reading. luck too ya, Forest:)