Home Forums Hunting & Shooting Rimfires Threading a CZ452 American question

It's always been in the plan to thread the barrel on my CZ 452 American. My question is, for anybody that has done it, what.do you consider the ideal barrel length after threading?

16.5

Thanks, Flave. Is that what your 455 is?

I believe my 455 is 16" exactly. But if I was paying a 'smith I'd tell him 16.5 to be safe... grin.




Dave

Yeah, Flave. Kinda looking like 16.5-16.75" is right in the CZ sweet spot. Did a bunch of research last night. The stock 452 comes 16", if you choose the threaded option. That is only for RH configuration. There is no LH configuration available with a threaded barrel.

Called CZ today. They referred me over to their Custom Shop, which is:

Triple River Gunsmithing
619 Commercial St
Warsaw, MO 65355

They are a private shop, but apparently do all of CZ's custom work for CZ-USA customers. I had seen their name pop up in a few blurbs online last night when doing research as being good to use.

Include letter about what you want to have done to include cap, thread pitch, and any other requests/remarks.

They're going to do the chop, thread, recrown for me for $60. My gun is stupid accurate when I do my part. However, the trigger is a really hard pull. They're also going to do a trigger job for me for $50 additional while it's in the shop. Customer pays return shipping. Didn't think that was a bad deal, so mine will be going out to them later this week when I've got some time off.

Infomercial over.

Tag!

tagged

...will be looking forward to when you get in back in your hands and can give a report.

Just picked up a box from my FFL/favorite LGS to put the rifle in original box inside to send to TRG (whilst dropping off a couple quarts of homemade split pea soup). Never hurts to feed the tummies of the people who grease the wheel of progress.
Figure rifle will travel better that way.

Rifle will be going out in the a.m. and will post up some info upon return and testing. Only have a Gemtech GM-22 to can test with when it gets back. 2 Dead Air Mask HD's still in FFL safe waiting on Chairman O's 41P nonsense to clear Form 4 cluster muster. (Don't get me started).

Going 18" and 1/2x28" thread pitch with smooth crowned cap and trigger job. 18" just 'cause I like being different. Trigger job if it's not just a couple Yo Dave springs.

Update(s) to follow.

Merry Christmas and Cheers to all.

Interesting LD. I have a 452 in .17HRM and really like it, but would like to get a second that I could cut down, ceracote, and put a durable synthetic stock on.

Merry Christmas, looking forward to your report.

Yeah, Bob. Funny you mention that because now I've been thinking I'll pick another one up and leave it uncut.

Haha, looney is as looney does.

About 5 years ago I had mine cut at 16.75" and threaded. A 452 with a can makes an outstanding squirrel rifle. I use subsonic ammo (my 452 shows a definite preference for win sub power points) and killing several squirrels out of the same tree is easy. I had squirrels for dinner this evening courtesy of my 452. Good hunting with yours.

Thanks, hotsoup. Just talked to Megan yesterday at Triple River. Said they'll be starting on mine tomorrow and will hopefully have it back next week.

So far, am impressed with their communication and quick work. This would take a minimum of multiple weeks at my best local gunnie's shop.

Form 4's for a couple more .22 cans will be getting filed next week. The 41F paperwork with a trust and trustees is a pain.. for now. Hoping Trump deals some influence there.

I did my 22LR, 22Mag, and 17HMR 455 American barrels all at 16.25". These calibers are not going to gain anything of any consequence going any longer and with a can hanging off you will want it as short as possible. That said, 18" will be just fine

Have had a lot of .22 rifles over the years but I can say that the 452 American with the original 17" threaded barrel has been right on top as my favorite. It is very very accurate and not picky as to the ammo fed at all.

Since one is adding a can that will be in the area of 6" long, anything over the minimum legal length makes little sense. I did chronograph tests with several different types of ammo and there was little difference between a 17" American and a 21" Varmint...also tested was a 28" Ultra Lux and it was often slower than the other two.

17"/21"/28"

Federal Bulk: 1225/1227/1224

Remington Bulk: 1194/1230/1178

CCI Velocitor: 1364/1389/1351

Winchester PowerPoint: 1234/1267/1275

Remington Target: 1109/1093/1116

Winchester Super-X: 1187/1250/1193

CCI SGB: 1262/1272/1248

Remington Viper: 1355/1334/1316

CCI Stinger: 1554/1569/1551

Remington HS HP: 1233/1244/1229

CCI QuickShok: 1567/1556/1685

CCI MiniMag: 1278/1294/1240

Aguila Supermaximum: 1672/1688/1695

Aguila Subsonic: 999/998/970

CCI Subsonic: 1006/1001/967


Each round had a 5 shot group at 50 yards. Noted in my test was that the CCI MM and Aguila Subsonic gave the best groups of the day...

This is a target at 50 yards using a Tactical Solutions AXIOM Titanium suppressor and Winchester Super-X ammo. With the suppressor the rounds impact about .5" higher than w/o the suppressor. The bottom right target is 100 yards...





Started at the top left with 5 shots with the can and then top right without the can and then adjusted the scope.... As I shot I settled in and the groups got smaller.




Great gun....Bob

back to the top.

Was wondering if you had gotten it back and how well the work performed on it turned out.

You all know if the can is pinned to the barrel then the overall length is measured to the end of the can.

Gristle, Marlan called me last week and told me the rifle was done. I could sense him chuckling in the background as I grilled him on what exactly he'd done. He answered every question and assured me it would shoot sweeter than it did, with its new 2 3/4 lb trigger he worked up for me.

My check cleared Friday, so should have it back some time this week.

Will keep you posted.

CZ Custom Shop owner's name is Harlan, not Marlan.

Thanks, I'm wanting to get mine squared away before my suppressor comes back.

Got the 452 back today. Was up early hoping Fedex would get here early so I could take her out shooting. Was hopeful, but didn't turn out that way.

Trigger job came out nice. I believe Harlan to be right on when he said it would be around 2 3/4 lb pull. Very clean, smooth, crisp break.

Well, here she is with the scope back on and a can threaded on to check fit and take some pics.



Can threaded perfectly.



gnurled cap



Won't get a chance to shoot it for several days. Put an empty case in the chamber and dry fired it a few times. Liking the trigger a lot so far. Yuge improvement over what I had. We'll see how she shoots next week.

That does it.....I'm boxing mine up this weekend. What length did you finally decide on with the barrel? 16.5 or 16.75?

Went with 18, Gristle.

Obliged

Perfect!!!!!

Anybody ever have any issues with the DIP bases? The first one I had bent and seemed to be made out of pretty sorry aluminum. The one I have now I installed with blue loctite and used light pressure with he small arm of the wrench to install. Seems to be holding fine but I haven't really used it much.

I had a problem with my first one, but that was on me. Didn't get it down tight enough. Working lie a champ now.

Thanks, just realized I posted in the wrong thread. I meant to put this in the CZ scope ring thread.

As promised, here's a range report for my 452 American I got back from the CZ Custom Shop. It took me a second week to get to the range. Just had too many things going on at once.

Running a SWFA SS12x42MQ.

Started off with CCI 40 gr SV's to get it sighted back in at 25 yds. Here's a pic walking them in. First shot, top left outside of the black.



Ran a few more mags through it at 25 yds. Boringly accurate. Started playing with the MQ clicks. Well, you'll get the idea. Two 5-shot groups. Screwed the can on after I was satisfied with the grouping at 25 yds with it off. Basically, shot to the same POI. Maybe a couple clicks difference.



Moved the target out to 50 yds and switched ammo to those gummy little Wolf 40 gr Match Extras. Resighting back in with the Wolf. All 50 yd shots were taken with the can on.



15 shots at 50 with the Wolf Match Extra.



The trigger job from Harlan is really quite nice. Continuous squeeze and it'll pop. Very repeatable and smooth. I'm sure it will get even better with use.

It is not a Kidd 2-stage trigger, but then I didn't pay $300 buck for it, either.

This little .22 is turning into a lot of fun.

That's a perfect setup dirt

Thanks, Cert. I love that rifle.