how about the nobles compared to a musket cap
I do not have a copy of the email any longer but I asked CCI the very question, what is the temperature difference in a #11 Mag and CCI Musket cap? Their reply was they burn virtually at the same temperature...

This does not include the #11 regular cap...
I also believe that the Nobel 1075+ cap may be a bit hotter than American #11 mags - but I have no proof of that. I use Nobles hunting without a second thought and shoot CCI's at paper and in warmer weather.
The Nobel 1075+, CCI #11 Mag, Remington Hot Cap all produce the same amount of heat as a Musket cap. i also have to add, while the the mag caps burn at the same speed and produces the same amount of heat as a musket cap - the musket cap will burn a bit longer because it has a larger storage area. But if everything works equally and the powder is ignited without a hang fire how long the cap burns should not be a factor...
The ability of the #11 to work well is dertimined by how well it fits the post and IF you press the cap on the post snugly. if a hammer hits the pressed cap MOST of the heat and fire will go directly down the nipple to the powder. If the cap is loose on the nipple two bad things will/can happen...
1. misfire - hang fire - no fire
2. a lot of the cap power will be wasted out the sides of the cap and down along the outside of the nipple post - robbing you of heat and flame.
Nipple fit - important...