The closest I've come to a double rifle is my poor man's "howdah gun". Touching off 7 drams of powder and a 600gr round ball was quite the rush. What was more fun was getting the load recipes and theories from 140 year old data. There is just "something" about the aura of a double rifle that nothing else can touch it seems.
For those interested, definitely check out the nitro express forum. LOTS of great data and tonnes of pictures!
For those interested, definitely check out the nitro express forum. LOTS of great data and tonnes of pictures!