good stuff
Bullseye, also known as Conventional Pistol, as stated above, is one handed shooting. It allows for open sights as well as optics - red dot sights are very popular. Compared to other shooting events, Bullseye is leisurely. A 2700 match (270 shots using three guns @90 each) can take all day, depending on how the match is run.
It is very precise shooting. The 50 yard slowfire target has a ten ring that is about three inches in diameter with a 1.6" Xring (and, yes, shooters have shot ten X targets). Slow fire is shot at 10 rounds in 10 minutes. Even the timed and rapid stages are slower than most practical shooting. Rapid fire, for instance, allows ten seconds for five rounds. Of course, that shooting is done one handed and the target is 25 yards away. Clean targets are common among the Masters.
The other form of Bullseye shooting is known as International Pistol. This is also one handed shooting. No optics; iron sights only.
Two of the events - Free Pistol and Rapid fire pistol - are Olympic events, along with Air Pistol.
Free Pistol shooting is , no doubt, the most precise of all shooting events. Very leisurely, the shooter has two hours to shoot 60 shots at an international bullseye that is 50 meters away. The 10 ring is only 1.78 inches wide. The 9 ring is 3.5. If the shooter is not shooting more 10s than nines, they are out of the game. (At the Olympic level. OR = 581).
The same target is used for two 25 meter events - the Standard pistol (.22) and Centerfire pistol (usually a .32).
NRA Highpower - not all HP shooting requires specialized "match" rifles. "Service Rifle" is a popular and VERY competitive HP event that requires only a rifle type that has been issued for military service . Nowadays the most common rifle is, probably, the AR15. Garands are used,as are M1As/M14, even Springfield 1903s are eligible.
Pete