@Damon a couple things you said make me think she may be feeling pretty insecure with that firearm. Here’s some things to think about.
You might set up some stovepipe clearance practice for her - this is what my trainer does:
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Clear the firearm
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Lock the slide back
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Hold an already-fired (empty) brass or snap-cap in the stovepipe position against the front of the ejection port (mind your fingers aren’t inside the port)
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Release the slide lock. The slide will snap forward and trap the brass or snap-cap in the port like a stovepipe.
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Load a snap-cap loaded magazine.
Now she’s got the exact setup to practice clearing, and since it’s empty brass and snap-caps, there’s nothing that can go wrong, no possibility of an accidental discharge. If she’s feeling some anxiety about how to handle clearing it, this exercise makes practicing the clearance drill less stressful.
When we’re drilling, my trainer will call out “slap / rack-roll / grip / sight / bang” sequence for the clearance drill (he abbreviates that sequence as we practice the drill and get more speed.)
You might find that having her do this a couple dozen times and over multiple sessions will greatly improve her confidence in handling the situation - and better confidence means less anxiety. Using the overhand grip will definitely help her feel in control of this exercise as well, just make sure she’s keeping the muzzle pointed down range when she does it (easier in weaver than in isosceles stance).
The other question is why is she getting stovepipes? Very likely it means she’s not gripping in a way that controls the recoil, and the excess muzzle rise is dissipating the energy that should get the shell ejected. So to get to root cause, it means figuring out why she’s not controlling the recoil. Could be a variety of reasons, but here are a few things you can look for:
- Her grip is lined up so that her wrist is cocked back (“broken”) - this means the recoil is lined up in a weak position of the wrist, rather than lined up with the bones of her arm and will result in the muzzle flipping up or right or both.
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This can sometimes be caused by a grip that doesn’t fit our hands (too big or too small) resulting in the backstrap of the grip lining up against the joint of the thumb or too close to the base of the index finger instead of in the web between thumb and index finger, where it should be well lined up with the forearm.
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This can sometimes be caused by a cross-dominant shooter in isosceles position trying to line up strong-side grip with weak-side eye, and can make the wrist cock back to change the angle of the sight alignment. Switching to a weaver stance and turning the head to align the cross-dominant eye can help with this.
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She’s not controlling the firearm with both hands - having her push forward with her strong hand into her supporting hand and pull back with her supporting hand (so they are working against each other) creates a more stable recoil-resistant grip.
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She’s flinching away from the bang - this might mean blinking, dropping or turning her head away, and will sometimes cause us to pull in our extended arms and weaken our stable shooting position and grip. Often the shooter doesn’t even know they do this.
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The firearm doesn’t fit her well, or is delivering too much recoil for her current skill level. Starting with a smaller caliber may help her develop skills without the anxiety that accompanies feeling unsafe and not in control, before moving back to this firearm.
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If everything else is good, and you are also getting some stovepipes, the rounds you are using may be under-powered for cycling her firearm.
Anyway, if you can give her some practice correcting stovepipes, so it doesn’t feel like something has gone scarily wrong, and can get to the root cause of the stovepipes and correct that, things should work much better.
BTW, the wrist-cocked-back is something I sometimes see men do without a problem. My hubby, who has big hand and wrists like tree trunks, shoots this way with smaller grip firearms - but he’s fired hundreds of thousands of rounds out of all sorts of firearms and has trained for that awesomely stable grip. Most women, certainly ones who don’t shoot often, don’t have the grip and forearm strength to do this without getting a lot of uncontrolled muzzle flip.