MemphisMechanic

While I don’t disagree with you, the Production national champion has run american eagle 124gr factory ammo through a Tanfoglio both years, I’m fairly certain. Not the case for Limited.

Having reamed at least fifty barrels for guys, I will say that you have the ideal gun for a large amount of material removal. SP-01 shadow and TS barrels cut like butter. As easy as they come. Shadow 2s? Well, there’s a reason I have a carbide reamer. Too many guns feature hardened barrels and polygonal rifling nowadays. That said, @zzt has a point. What you need to do is to open up a substantial portion of the rear of the chamber itself from a hole sized for 9mm brass to one for .40 brass, right? Gotta make room for that fat bottom of the case. It *seems* to me that you need a 357SIG roughing and finish reamer for this task. Most of what you need to do has nothing to do with the rifled portion of the barrel.

Shoot a gun with an Extreme trigger first. The flatter trigger looks like it would feel better... but there are a lot of guys around here who bought one, then sold it in classifieds. There’s a lot to be said for that funny looking, but really ergonomic, curved trigger.

I set things like that up locally and it is amazing how often people shoot A/C combinations on the targets as if they’re a 10 HF stage where that can be a winning strategy. A 12-18 round stage with lots of movement, a steel and activator, a tight position for a single target, etc? They really test your ability to be efficient in EVERYTHING the stage features.

I see what you did there.

Really? A lot of shooters I know are rather cheap. A single $3,500 doublestack 2011 in .40 or one Open gun was the limit of what they were willing to pay for. Now you want them to buy multiple $2,000 (including upgrades, ammo pouches, mags, sights, etc) weapons to shoot a single match with? *AND* have three times the gunsmithing headaches keeping all those guns running flawlessly? No thanks man. I’m good with a one-gun match.

Interesting angle I hadn’t considered: Everyone who has gotten really good at USPSA has gotten laser-focused on one division and practiced hard at that one thing for years with minimal equipment changes. No room for squirrels. Gotta go dryfire.

This. The “loading” portion of shotgun never dissuaded me from shooting 3 Gun. The need for ma shotgun at all? That was why I never participated. There’s no way I’m putting over $1,000 into buying and setting up a 12-gauge. Zero desire to spend money there. The primary thing 3-gun offered that I wanted? To learn to effectively run and gun with an AR-style rifle. To be as proficient with a long gun as I am with a handgun. Then USPSA created PCC. PCC offers that opportunity in a match which has 10-45 second stage times, much faster reset times between shooters... and I don’t have to be out there all day to shoot 4 or 5 stages? Sold! I never got around to shooting 3-gun, and now I never will.

youTube channels are just as bad. ”Got pulled over by the cops, you’ll never believe what happened!” ... if you watch the video? Fourteen unedited minutes worth of him getting a speeding ticket. Nothing unbelievable transpires at all.

I agree. You can set up three or four simple boxes or ports with tight partials and long steel... and you snow have an Accuracy Stage, but not an overly technical one. This. This is a technical stage recipe. Whatever you do, don’t setup up a port with 4 targets, then another port with 4, and repeat. Move a few targets around. Consider combining one or more of the following: 1) Make a few available from two or even three ports. 2) Leave a couple of them visible while moving from port to port. 3) Perhaps place barricades so that one target is only visible from each corner of the shooting area, then leave remainder of them exposed for most of the stage. 4) Make a few of the targets available from multiple place into shots that are too tight to comfortably shoot on the move, while others pretty much beg for it. (Or do something fun and unusual: like an activator steel that operates a swinger in another port.)

No. They’re the problem children. The DVC series in particular is a headache all but promised.

Wow. Following now. Beautiful lines.

@RickT one of the nice things about a short shrouded barrel is that you can use the same loads for Production and PCC without making a change. What makes 133pf through a handgun is usually 140-145 in a 16” AR9.

If you don’t want to compromise on barrel weight, you might just want to settle for a heavier gun. Anything you did to take weight off the back (and you can’t shed much back there) would just make the gun very muzzle-heavy. That barrel is nearly half the weight of my 5lb 15oz PCC - which is running a barrel I turned down to hit 20oz *including* the pinned & welded comp. Barrel. Handguard. Stock. These are where the vast majority of the weight savings take place, and weight out in front of the magwell matters much more than weight behind it.

Agreed! .095 or .100 is ideal.

Gotcha!!!

Then yes. It’s 20% overweight.

Okay. WWB (Wichester White Box) should run fine for sure. Rules that out as a variable. Are you hand-cycling this exclusively, or have you run it through the gun in live fire? You’re ripping the slide off the back of the frame hard and letting it SLAM forward exclusively... right?

Did you reload this ammo or is it factory? What brand and bullet weight, if factory? What bullet and OAL, if reloaded? Does it plunk, spin, and then fall out of the chamber effortlessly? Here’s a clip of a barrel I throated for a CZ owner this morning, before and after:

Close. Except that our stage designs are as freeform as USPSA itself. MD might design one stage, then he’ll head to the scoring shack to begin configuring squads and registering novices. Sometimes not even one stage. There are about six to ten of us who have a fetish for stage design, and who all try to come up with the stage everyone who attends the match liked shooting the most. Right before walkthrough he’ll come by and ask us “how many paper, how many steel, total round count?” to punch the stage into practiscore. He’ll then yell “WALKTHROUGH!!” and the stage designers will each take the lead as our mass of competitors arrives in each bay to describe round count, starting position, etc. For us, it works really well. This does cut way back on people arriving an hour or more before the start to get a walkthrough in, as the stages are still undergoing final tuning. They come to help, or there’s no point being there early. Generally we design stages from 8-10am and shoot from 10:30am til 1:30-2:30, depending on squad size and how hard everyone works etc etc.

If some is good, more is not always better. N310 is hot enough that you’re pushing +P pressures behind a 9mm bullet. I knew a guy who loaded N310 behind 147s. His ammo was soft, but he was also well aware the pressures were sketchy.

Quarter Circle 10 has the best Colt mag lower out there. They run great and should feed pointier hollowpoints well. If you want reliability with some of the fat wide HPs out there - a 147gr subsonic gold dot or HST? You want Glock mags imo. Colt mags leave well over an inch of space between the rear of the barrel and the front of the mag, that’s just the way the rearward-located and 90* upright SMG mag is going to leave things. So there’s a lot of reliance upon a well-designed feedamp, which is something QC10 did very well. Compare that to a Glock lower from QC10 or one of other other high end makers, and those damn near skip the feedramp: the rear half of the brass exits the mag only after the bullet was fed directly down the center of the chamber, barely kissing the feedramp. The mag rides higher and due to the forward lean of the Glock mag, the feed lips are right behind the barrel.

Reverse temp sensitivity is a GOOD thing. (Unless you truly enjoy running a chrono on the coldest days of the year!) I prefer reverse-sensitive powders because I never have to mess with a chrono in winter weather: If I chronograph my ammo and find that I make PF in the heat of summer, I’m certainly going to pass chrono when I pick up a few additional points shooting a major match up North in November.

If he bought it off Brownells / Midway / etc then it is HSS. I’m not aware of any commonly available Tungsten Carbide reamers. If you find one, let me know!

No, you won’t need to polish it. Just shoot and enjoy.