The critical thing is the grip strength you apply, try to be firm but relaxed and when you find the strength that gets it on target remember it and repeat it till it sticks. Use the same strength grip for 2 handed too, so that your 2nd hand supports the front of your grip hand but does not touch the gun or squeeze the grip hand.
It will come eventually
We tried some 15 yard knock down targets with several different types of pistols, most with open sights on Sunday at Shepreth. Very good fun, especially when tried with the Drulov at 5 seconds to empty the mag.
Cheers
John
Cheers
John