New Member: Experiences w/ 75B

[redcrown]

Great forum!  Been lurking and learning for a while.

Have two 75B Omegas (black and polished stainless), and an 83.

First time out, the black 75B shot extremely well.  No complaints.  Yet, I just had to go through the many variations of Wolff springs, e.g. recoil, recoil and mag, extractor but no recoil, etc.  Except for grips, the stainless will remain standard.  I like the rubber grips.

Recoil Spring: Tried 16 lb. and 15 lb. Wolff, and a Browning Hi-Power variable.  16 lb. caused "stovepiping."

Mag Spring: Wolff +10% (5% 75B).  Slide would not lock back on last round.

Extractor Spring: Tried more powerful spring from Wolff.  Always failed to feed first round, and any thereafter.

Everything is back to factory original.  No problems in any regard with standard SAAMI or +P loads in 115 gr. and 124 gr. ammunition from a wide variety of manufacturers; even the oft-mentioned Winchester White Box.  But no 147 gr.

If ever I have to replace something, it will be with factory parts.

Really enthused about these pistols.  I like 'em a lot.

[dwhitehorne]

I've tried extra power springs in my 1911's, Hi Powers and CZ's.  I just shoot off the shelf ammo so I always seem to come back to the factory spring rates.  David

[Walkure]

Have two 75B Omegas (black and polished stainless), and an 83.

When did they start making stainless B-Omegas?


I don't run stronger-than-factory recoil springs in any pistol I own. All are either factory, or in most cases, significantly lighter. I run 10# recoil springs in my full-size 9mm CZs, with either 13# or 15# mainsprings.

[Radom]

Great forum!  Been lurking and learning for a while.

Have two 75B Omegas (black and polished stainless), and an 83.

First time out, the black 75B shot extremely well.  No complaints.  Yet, I just had to go through the many variations of Wolff springs, e.g. recoil, recoil and mag, extractor but no recoil, etc.  Except for grips, the stainless will remain standard.  I like the rubber grips.

Recoil Spring: Tried 16 lb. and 15 lb. Wolff, and a Browning Hi-Power variable.  16 lb. caused "stovepiping."

Mag Spring: Wolff +10% (5% 75B).  Slide would not lock back on last round.

Extractor Spring: Tried more powerful spring from Wolff.  Always failed to feed first round, and any thereafter.

Everything is back to factory original.  No problems in any regard with standard SAAMI or +P loads in 115 gr. and 124 gr. ammunition from a wide variety of manufacturers; even the oft-mentioned Winchester White Box.  But no 147 gr.

If ever I have to replace something, it will be with factory parts.

Really enthused about these pistols.  I like 'em a lot.

I think that you may have been a victim of "old " information.  Eastern European firearms used to come "undersprung" from the factory.  This was equally true of FEG (Hungary), Vanad/Radom (Poland), and CZ (Czechoslovakia), as well as most Makarovs.  At some point, CZ-USA began using Wolff springs as "factory."  I have no idea if this is still true, because I have been out of the shooting scene for about two years (went back to school). 

OTOH, you broke the fundamental rule: Never "fix" something that ain't "broke!" 

Congratulations!  I am getting older, and I still think CZs are one hell of a pistol, and I have been collecting/shooting them for about ten years now.  In my own little world, their only competition is the BHP, 1911, and older S&W revolvers.  That's good company...

[redcrown]

Have two 75B Omegas (black and polished stainless), and an 83.

When did they start making stainless B-Omegas?

Hah!  I did write that.

The high-polished stainless is not an Omega.

[redcrown]

I think that you may have been a victim of "old " information.  Eastern European firearms used to come "undersprung" from the factory.  This was equally true of FEG (Hungary), Vanad/Radom (Poland), and CZ (Czechoslovakia), as well as most Makarovs.  At some point, CZ-USA began using Wolff springs as "factory."  I have no idea if this is still true, because I have been out of the shooting scene for about two years (went back to school). 

Many manufacturers use Wolff springs.

Matters not.  Cheaper from Wolff, and in stock.

[redcrown]

I don't run stronger-than-factory recoil springs in any pistol I own. All are either factory, or in most cases, significantly lighter. I run 10# recoil springs in my full-size 9mm CZs, with either 13# or 15# mainsprings.

Why 10#?

[Radom]

I think that you may have been a victim of "old " information.  Eastern European firearms used to come "undersprung" from the factory.  This was equally true of FEG (Hungary), Vanad/Radom (Poland), and CZ (Czechoslovakia), as well as most Makarovs.  At some point, CZ-USA began using Wolff springs as "factory."  I have no idea if this is still true, because I have been out of the shooting scene for about two years (went back to school). 

Many manufacturers use Wolff springs.

Matters not.  Cheaper from Wolff, and in stock.

I seem to have missed your point. 

[Walkure]

I don't run stronger-than-factory recoil springs in any pistol I own. All are either factory, or in most cases, significantly lighter. I run 10# recoil springs in my full-size 9mm CZs, with either 13# or 15# mainsprings.

Why 10#?

Lightest available from CZ Custom. One of these days I will order some Wolff 8# springs to test out.

I wish ISMI made CZ springs... from personal experience, I've found their quality to be superior to Wolff. To me, it seems that ISMI springs last longer and are more consistent.


ETA - And before somebody asks, no, I'm not running light loads. I run 147gr @ 950 fps. (For comparison, most factory 147gr loads run somewhere betwen 950~1000 fps, including common defensive loads.)

[redcrown]

ETA - And before somebody asks, no, I'm not running light loads. I run 147gr @ 950 fps. (For comparison, most factory 147gr loads run somewhere betwen 950~1000 fps, including common defensive loads.)

Have you encountered feed problem w/ the 147 gr.?

[Walkure]

ETA - And before somebody asks, no, I'm not running light loads. I run 147gr @ 950 fps. (For comparison, most factory 147gr loads run somewhere betwen 950~1000 fps, including common defensive loads.)

Have you encountered feed problem w/ the 147 gr.?

No problems in any of my 9mm CZs, which all run the 147s.

[ignantmike39]

I don't run stronger-than-factory recoil springs in any pistol I own. All are either factory, or in most cases, significantly lighter. I run 10# recoil springs in my full-size 9mm CZs, with either 13# or 15# mainsprings.

Why 10#?

yes, i'm still wandering why run a 10# spring?.....isnt the factory spring 16#?.....also, why the 13-15# mainsprings?......just curious.....thank's

[redcrown]

yes, i'm still wandering why run a 10# spring?.....isnt the factory spring 16#?.....also, why the 13-15# mainsprings?......just curious.....thank's

CZ factory recoil spring is 14#.

Walkure says in another thread: "Within the wide range of acceptable (reliable) ratings, recoil spring strength is something of a personal choice. Some of us - myself included - prefer the higher cyclic rates acheived by light recoil springs. Others prefer to limit slide motion by use of heavier springs, especially if combined with buffers."

Higher cyclic rate may translate to faster return to target.