CZ 550 American 7x57

Status
Not open for further replies.

holmegaard

Member
Joined
Apr 15, 2016
Messages
42
Location
Kentucky
Saw this beauty this morning at a local shop, & just loved the way it looked & felt on the shoulder. Have been wanting a 550 to sort of round out my CZ armory, but admit I didn't know much about the caliber, or whether the price was right. Did a little homework over lunch & decided the caliber was just right, & the price was quite good. So back to the LGS I went...

It's stamped with an 11, but was being sold as new, so I was a bit confused. It sure looked new, but where had it been for 5-1/2 years??? Guy at the shop didn't know & the owner is out of town, so he went back & got the box. Sure enough, the test target is from August 2011. Bolt & rings were still sealed in their wrapping, & all the paperwork was there, including a blank warranty card. Guy said it had only been there a couple days. Head scratcher, but no matter as I was going to buy it anyway.

Fit & finish are really good, barrel is well floated back to the receiver. 4 $1 bills slide easily, 5th gets snug. Good thing, that's all the bills I have
eek.gif
.

Toy fund is seriously depleted, so it'll have to wait a while for it's own scope. Gives me some time to think about what I want to put up there. Meanwhile will "borrow" one from another rifle so I can get it to the range.

Think it'll look really good with a Leupold/Redfield/Weaver something or other, & one of the leather Rhodesian slings (a darn good shooting aid, btw) like I put on the 527. 20170114_112645.jpg CZ 550 - 2.jpg
 
My favorite rifle is a 550 American in 6.5x55. My next purchase was going to be one in 7x57 but CZ quit making the 550 American. Still bothers me. I believe you got an outstanding deal.
 
Congratulations. That is nice quality classic Mauser type rifle. The only thing better would be .270Win. While in same class as 6.5x55 or 7x57 it has advantages of very large ammo selection and Walmart availability 24/7.
 
i used a cz-550 in 375 H&H on four trips to africa and was not disappointed, does your 550 have a single set trigger? i think you will love your new rifle. eastbank.
 

Attachments

  • Picture 4454.jpg
    Picture 4454.jpg
    196.6 KB · Views: 16
  • Picture 4149.jpg
    Picture 4149.jpg
    181.6 KB · Views: 16
  • Picture 5743.jpg
    Picture 5743.jpg
    184.4 KB · Views: 16
  • Picture 5939.jpg
    Picture 5939.jpg
    191.9 KB · Views: 13
  • Picture 7391.jpg
    Picture 7391.jpg
    122.9 KB · Views: 16
Let us hope current ammo is loaded to its full potential. Many years ago when I owned one the 7x57mm and 8x57JS ammo was loaded to low velocity to pressure because there was lot of surplus junk floating around and ammo manufacturers were afraid users would blow up old clunkers hurting themselves in the process. I sure hope things have changed.
 
I bought a 550 FS in 7x57 two years ago. I'd never heard of the caliber at that time, either, but it is a time-honored caliber. Mine wears a Leupold VX-1 3-9x40, and I have taken two deer with it using cheap PPU 139 gr ammo. Does exactly what is supposed to do. Like the previous poster said, 7x57 is easy on your shoulder. Needless to say, I have been super happy with my purchase.
 
Those Euro calibers like 7x64, 7x57, 6.5x55, 8x57JS are ok, but from practical point of view I wouldn't pick them over .260, .280, .270, 7-08 or .30-06. There is no difference of consequence among them.

The .308, .270, .30-06 hold an edge, because while I would never advocate using Walmart as regular ammo supplier when hunting near some forgotten town or village and in need ammo that is the only place where some will be found.

Disclaimer: I do not like Walmart.
 
Thank you for all the replies.

Will likely handload for it to get a bit more than most factory ammo can offer. Though I'm sure even the weak factory stuff is plenty adequate for whitetail, assuming a decent bullet.

It does have the single set trigger, which I'm familiar with from my 527M in 7.62x39. ~4 lbs & a good bit of creep out of the box, but I adjusted last night since the action was out of the stock for cleaning & waxing. Just a few minutes of adjusting yielded 35 ounces, no creep, little overtravel, & a nice clean break... just how I like a hunting trigger. 16 ounces when used as set trigger.
 
At the last big ammo rush 3 years ago the only ammo I saw on the shelf at Walmart was .270. But, here in Iowa we cannot hunt deer with center fire rifle and it's too big for coyote. I have never seen any 7x57, 6.5x55,.260 or 7-08 at our local Walmart. Which may be the only source for ammo in many remote locations.
 
Beautiful really rifle in a very cool caliber!
I think most of the "cheap" ammo is still downloaded, but the premium stuff is full power. That may have changed but the last time i looked at factory specs on the ammo for the 7x57 that was pretty much true.

Not that it matters to much for anyone who handloads, buddy of mine had one in a savage long action and would get pretty close to .280 velocity out of it.

Besides, cool trumps practicality anyday! :p

As to ammo availability, here in hawaii sports authority and one Kmart were the only box stores that sold ammo. Gun stores here stock some really odd stuff, including 9.3x74r, .378wby, and a good spread of the mauser rounds.
 
Congratulations. That is nice quality classic Mauser type rifle. The only thing better would be .270Win. While in same class as 6.5x55 or 7x57 it has advantages of very large ammo selection and Walmart availability 24/7.

.270 is definitely a higher velocity cartridge. What the other two offer is killing power out of proportion to their paper ballistics. The 7mm offers the ability to shoot much heavier bullets than a .270 and the 6.5x55 can be had with heavier bullets than a .270 which accounts for the reputation of both the metric cartridges of very deep penetration with low recoil. I've been shooting a .270 since 1972, still have the rifle. Got my 6.5x55 seven years ago because of three shoulder operations and the desire to reduce recoil. Mission accomplished.

I believe people purchasing rifles in either of the metric cartridges are cognizant of the fact that ammunition for said rifles is not as widely available as .270.

I'm not usually in to cool factor but in this case would love to have a CRF rifle stamped .275 Rigby. I would then change my name on forums to Karamojo.
 
I do get the arguments for the practicality of .270 Win, .30-06 Sp, 7mm-08 Rem etc. Effective, versatile, & widely available cartridges, no doubt. For my usage scenarios, though, I have practical rifles/chamberings well covered.

.357 Magnum - Widely available ammo in an assortment of weights/configurations. I reload for this round, & Titegroup + 158 grain coated lead round nose bullets = really cheap shooting (very nearly as cheap as .22LR) with very little recoil. W296 + XTP or FTX bullets = short range whitetail hunting. My kids love this one.

7.62x39mm - Widely available ammo, most of it cheap. Hornady steel case SST gives me repeatable sub-MOA groups with enough energy to be effective on whitetail beyond the distances I'm ever likely to shoot in the thick mid-south woodlands I hunt.

.22LR - Widely available ammo now that the drought is past. Have enough on hand that I'll never be without (learned my lesson). Small game, plinking, marksmanship training.

This rifle is more of a luxury than a need. Don't get me wrong, it'll get used plenty, but will not rack up a super high round count. What I wanted from the "next" rifle that turned out to be this one:
- Good for whitetail (check)
- Good for potential black bear or elk hunts that may or may not ever materialize (check)
- Some very non-practical traits that I didn't demand when purchasing other rifles; beautiful walnut stock, great fit & finish, & something that makes it somewhat unique or interesting (check, check, & check)

Cool factor is rarely a consideration, but it was this time. Wanted something that made me say wow when I saw it & handled it.

Factory ammunition isn't that scarce; Google showed me plenty of it in stock from online sources, ~$0.80 to $2.00+ per round depending on the flavor. Whole 'nother story I guess, if you live where mail order ammunition is forbidden. No such restriction here in the commonwealth. A far cry from the factory options available in .270 Win, but also a far cry from .218 Bee.
 
.270 is definitely a higher velocity cartridge.

Well, I wouldn't say that is strongly the case. A bit maybe, but not by much.

In a modern, strong action, 7x57 can be loaded to the same pressure as (for example) 308. And I have yet to see a load in a manual that deliberately approaches the 270's 65 KPSI spec.

I have a 7x57 that is instrumented with a strain gauge, and have quite a safe load that will get a 162 grain bullet to 2750 FPS.

My granddaughter took it elk hunting last fall, loaded with "controlled recoil" 139 grain loads, and found it quite pleasant to shoot.

The OP has a beautiful rifle. I'm sure he will greatly enjoy it and get many, many years of excellent service from it. Outstanding choice!
 
Last edited:
Well, I wouldn't say that is strongly the case. A bit maybe, but not by much.

In a modern, strong action, 7x57 can be loaded to the same pressure as (for example) 308. And I have yet to see a load in a manual that deliberately approaches the 270's 65 KPSI spec.

I have a 7x57 that is instrumented with a strain gauge, and have quite a safe load that will get a 162 grain bullet to 2750 FPS.

My granddaughter took it elk hunting last fall, loaded with "controlled recoil" 139 grain loads, and found it quite pleasant to shoot.

The OP has a beautiful rifle. I'm sure he will greatly enjoy it and get many, many years of excellent service from it. Outstanding choice!


In the bullet weight that made the .270's reputation there is big difference in velocity which would be 130 grains. Hand loading can of course close the gap some. The 7x57 case is just not as big as a .270. I'm a big fan of the 7mm and definitely want one as has been stated.
 
Of course, you are right that the 270 edges out the 7x57 by a little.

Ackley experimented with the 270-08, and found that he lost only about 50 FPS, since the 270 has enough case capacity that efficiency is not as good as some other cartridges.

At the same pressure, the accelerating force on the base of a 7mm bullet is greater than that on a 270 bullet, because force is pressure x area. The difference isn't great, but works in favor of the 7x57.

The 7x57 case has more capacity than the 308 in Ackley's experiment. So the likely difference between a 270 and a 7x57 loaded to the same pressure is less than 50 FPS.
 
Every one of the half dozen real gun shops within 30miles of me carries 7x57. I use a 140gr Gameking over 48 grs of H414 (Ken Waters pet load); shoots beautifully at 2850fps in my Model70.

It also shoots that Speer TNT bullet nicely without a lot of recoil.

My 12yo daughter has eyes for that rifle.
 
The 7mm Mauser (7x57) is a fantastic caliber. The Spanish had these at the battle of San Juan Hill. I have a 1903 A4 rechambered for it. Very soft and very accurate. If you reload, once fired brass is hard to come by. Buy cheap European ammo and save the brass.
 
Yes IMR 4350 is an excellent powder for 7x57. I got my first 7x57 35 years ago. It was a family hand me down built by my grandfather on a Mauser 98 33/40 action. I have killed around 20 deer with it. I have only bought one box of factory ammo for it. All the rest are handloads. My favorite is the Hornady 154 Spire Point loaded with 48grs of 4350. That is safe in my rifle. But check it in yours. have some factory remington brass but a lot of my brass was made from 270-30-06 brass with a case forming die from RCBS.

I just about a year ago bought a second 7x57, a remingtom 700 BDL Mountain rifle. What A neat rifle that is. And lightweight too. It weighs 6.25lbs without a scope. The 7x57 really will not match the 270 in speed. But it makes up for it by being able to use heavier bullets. Plus a 140gr bullet at 2850fps is no slouch.
 
Plus a 140gr bullet at 2850fps is no slouch.

Indeed, but why so slow? :) My 7x57 gives me 2864 FPS with a 150 grain bullet at a measured 56.6 KPSI, which actually leaves room for another grain to grain and half of powder before reaching the safety limit.

Propellant gas can't read headstamps. It only "knows" the quality and geometry of the steel and brass that contain it. If you can load 308 to 62 KPSI, you can load 7x57 to 62 KPSI in the same strength action.

I'm one that strongly advocates sticking to the "book" maximums, but there are some exceptions: 7x57, 6.5x66, and one or two more, so long as you are using a modern, strong action in good condition.
 
Always carry all the ammo you might possibly need with you. I'm glad that 270 is so widely available. 270 cases are excellent cantidates for forming 7x57 and 6.5 x55 brass. Handloading is a good hobby and enjoyable itself. After you enjoy that hobby you can then have even more fun shooting that new rifle. Nice tool you have there. Anyone else with objections might possibly be a little jealous.
 
Status
Not open for further replies.
Back
Top