I take it these are incompatible with one another?

Mark V
Weapon, gun.
Strike: 4R damage, only usable once each round and only at long range.



Caseless Rounds
Ammo.
Only usable before resolution of a gun's strike. For the remainder of combat, once each round when the bearer strikes with this gun, the bearer gets an optional additional strike, only usable to strike with this gun. No more than one ammo card can be used on a gun each combat.

also does caseless rounds provide a gun such as AK-47
Weapon. Gun.
2R damage each strike, with an optional maneuver each combat. When bearer strikes with this gun, he or she gets an optional additional strike this round, only usable to strike with this gun.

with a total of 4 strikes?

Agamemnon wrote:

cf rules 6.4.3: only one effect per round can grant additional strikes. It looks like you can play Caseless rounds to cycle though: it is played before strike resolution and the additional strike of the AK-47 is gained at strike resolution.

And no, you can't use the Mark V to strike multiple time per round regardless of (current) card you play.

You would need a card which explicitly say "gain one additional strike, useable only to strike with this gun and ignoring restriction on number of use" which does not exist.

Correct answers from Boris the Blade and Ohlmann.