I am looking at a double rifle to buy and it will be my first one. I am looking for something that I will be able to shoot regularly and enjoy it and become very proficient with it. Some folks are telling me that the .450/400 is not a big bore and it is marginal on dangerous game. I have looked at velocities and I tend to agree, but I dont see my self hunting beyond 150yds with it, and I would rather have perfect bullet placement. With hornady having factory loading, brass will be readily available. I appreciate any advice you have. I believe I narrowed it down to a Heym for brand.