Quoted:
(Hannah’s lack of any problems might be due in part to the ferocious round she is firing!)
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Personally I wouldn't put her in the "candy ass shooter," category either.
I'll stab at this one.
Make sure the chambers are clean on the pistols. Don't just scrub the chamber with the nylon brush that is packed with the pistol. Get a cordless drill and chuck a .45 cal bronze bore brush in it. Run it into the chamber dry, make sure all the carbon and powder residue crap is all out of there. Then use some solvent on the brush and repeat. Patch out the crap. Examine the chamber for roughness or corrosion that is holding up extraction. Polish the chamber as needed.
With a clean chamber some of the inertia will not be spent trying to rip a case out of a sticky chamber.
[soapbox] Amnother option is to be the big meany and tell them to "hold that gun harder than a well digger's auger, or your going to get shot!"
If you are using aluminum cased CCI Blazer ammo to save a buck, STOP. Use something with a brass case. Blazer aluminums are notorious in my neck of the woods for NOT functioning well in Glock .40 S&W.
Hope this helps. Keep us up to date.
Doug
Point this thread out to your instructor.....if your not the instructor.[;)]