Quote Originally Posted by tacfoley View Post
I only load .45-70 Govt, and leave no air-space at all, by using a drop-tubed load that allows of around 1/8th inch compression when loading the usual 405gr bullet. By all means continue to do what you have always done - same goes for your acquaintances and their empty spaces.

I guess I've nothing more to add to this thread.
those who leave air spaces in bp cartridges do not do it to be different or start a trend etc..
they have read articles and books by gun makers like mr greener and others.....so its not taken lightly.
one chap i know shoots competitions all over europe and fires 1000s of rounds without incident or chamber ringing of any sort.
myself i stick to using kapok as i only shoot bp occasionally.
remember many people still use cream of wheat in bottle neck cases and dont realise they can cause case / neck separations and have been shooting that way for years without incident......pays ya money and take ya chances