AH you ignore the
human element. So this is an academic question......
So you lock both rifles into a stand on the bench, and they are identical, barrels came off the assembly line right next to each other and one was set up with a drum and nipple, and the other with a touch hole. You load them identically, with totally perfect bullets, and fire them at targets at the same distance with exactly the same wind conditions. They will both group exactly alike,
BUT..., the flintlock will shoot slightly lower...and I mean
slightly like a teeny tiny bit.
Because..., there is a tiny loss of gas pressure out the touch hole thus giving the identical barrels
in our perfect situation, slightly less muzzle velocity. The groups will be identical but the flinter will be a tad lower. Correct the sights on the flintlock to account for this and they will be identical.
Now, back to the real world, where a human is most likely firing the flinter...., and the flint changes a miniscule amount from shot to shot, or changes more from shot to shot.....,
The flintlock can ignite so fast that you need an artificial timer to tell the difference between it and the caplock.
CAN..., not always
will...
since the random changes in the edge of the flint may cause differences in the amount of sparks delivered to the pan and powder, and when they are delivered. Add to that differences in air moisture to the priming powder, either in the container or when resting in the pan, which can alter ignition speed. Meanwhile during the firing sequence, the shooter has to maintain the proper sight alignment. Now all of this in a well made lock, and well aligned trigger, are tiny variations, over fractions of a second, BUT..., it can add up to give an overall average of slightly less accuracy in the flinter. NOT enough for it to matter to a deer or elk or moose, but enough at the national level of target shooting to cause the two types of ignition in the rifles to be in two different categories.
Just to be clear..., IF your flinter is shooting like the
pop-Ca-POW of a Hollywood rifle or the Vintage TV Series
Daniel Boone..., the lock needs a lot of work.
I own both, and I think the flinter is more fun and the bragging rights are better. If it's going to rain pretty hard and I'm running out of days to hunt..., I grab the caplock.
As far as swabbing between shots....that has nothing to do with the ignition, and is all about the powder, atmosphere, and the lube.
LD