As fare as accuracy at distance i know guys that can head shoot a man every shot at 100 yard every shot with their cary gun. They practice a lot at distance. Im not one of them. To me handguns are a weak close range defense tool and im happy being able to hold 4 to 5 inches at 25 yards and very little practice. Best i have ever shot was a mark 23 hk a friend had . I was bouncing a pop can down the range each shot at 50 yards. What a gun. To carry it it would be a winter time only gun its huge and heavy.

I went through stages with all guns at different times but started off with handguns at 18 when I got my first permit. Started with big heart revolvers duel pourpous for hunting and I could make 100+ yard shots. After some time I got a glock 23 and decided its much nicer to carry. Then I got smaller guns for more concealment 3 inch groups at 19 yards was good enough for me with the small guns. Different tools for different situations.

Today I dont have many handguns most have come and gone. Still have that glock 23, 2 kahra pm380s and a hand full of .22s.

Just a guesees going from my experience the novelty of packing the big heavy gun will wear off after a while. At least it did for me. Took 3 or 4 years and experience with something thinner and lighter.

My daily carry will remain a compact or a pocket gun. I can tell some people didn't read the thread which is fine, we're all busy I get it.

This gun will be carried 2 hours a week for a very specific purpose.

If you wear a suit jacket you can hang a short Uzi type long gun like secret service does....

the super sexy MP7 is the hot thing now https://www.heckler-koch.com/en/Pro...e%20guns/MP7?section=variants&s=true

many saw a few of them slide out of bags and briefcases at the Hilton a week ago

Oh if you get into brief case size stuff the PDWs get very interesting.

That said it is hard to beat out of holster time of an on person carried handgun , so then it is training to hit what you need too.

also it should be a team sport with a good zone defense.

Triple K makes a leather holster with a mag pouch. Spouse has one for his Ruger 40 cal.

You right first post says one day a week. Missed that or just conflated my past carrying large heavy guns use with yours and projected it to your situation.

I would go with sport jacket and shoulder rig under your left arm. If right handed since you will probably be seated a lot during church and the larger gun will print more and dig in to your soft body parts. May not be to bad for you being used to being uncomfortable and having your harness diging in daily though.
Is been 2 decades since I was doing trees daily and comfort has become a little more important than it used to be .
Beyond comfort its easier for me to get a gun out of a shoulder and ankle rig when sitting. Clearly you shadow wont go in an ankle rig but the point is the same.

Over 80 percent of ccw engagements take place at 3-5 yards.

Yep, that's why I normally carry a compact 9mm. This situation is different.

Depending on your church set up, I think this makes the most sense. We have a tech booth that runs video and sound for the service. It’d be a perfect spot for a guy with 300blk pistol in a bag. Just ran drills with my carry gun and my bedside 300blk yesterday. It’s no comparison how much faster and easier it is to make A zone hits, not to mention 30 rd mags and more power. A Sig Rattler is on my radar

this is why they say pistols are to fight your way to a rifle. they aren't wrong it is just difficult to keep a rifle staged in a good way.

it would be ideal to keep the threat on the outside with good door management and camera setups.
well placed large planters in key locations

anyone coming with something much bigger than a pistol should be easy enough to spot outside before they can make entry.

you also want to keep a very low profile because you can be certain not all your membership is going to be super chill with a long gun in the sound booth also if it makes it into the sanctuary you missed a bunch of opportunities to keep it out of the sanctuary

Again practice is the big thing here. If you dont drill you wont see a difference at all.

This won't help in your situation, but I bought my wife a CC purse. The thing is awesome , you can literally walk around all day with your hand on the trigger and know one is the wiser.