change of poi as gun warms up?

[DrHenley]

Originally Posted by svandamme

I first ran 50 rounds with a Ruger .22 as warm up...Which improved my .45 results considerably, all in all, i guess this answers my question : It was me, not the gun.

I think your grip loosens a bit when you get a little tired from gripping too tight and anticipting the recoil, allowing the muzzle to flip more. Warming up with another gun gets you past the too-tight grip phase.

I've noticed the same phenomenon, using a 22 first improves my groups considerably.