bullet weight

[cracker57]

I am wondering what weight bullet you are finding to be the most accurate for punching paper out of your 75b. also if you have an accurate load would you be willing to share?
 I am a new cz 75bd owner looking to get the most out of it as far as accuracy.
 Thanks

[SI VIS PACEM PARRABELLUM]

I shoot 115 and 124 gr. bullets with either one being extremely accurate within normal defensive ranges. I don't go beyond 25 yds so there's that. There's at least one member here who shoots bullseye at 100 yds with his CZ's and does very well with it.
I won't publish my load data as that's something you need to work up on your own and tailored to your specific gun and for the obvious safety reasons.

[M1A4ME]

I've tried both 115 grain and 147 grain quite a bit.  Very little 124 grain.

And, so far, my guns do their best with 115 grain bullets.  The factory Federal 115 grain FMJ ammo does very well in my 9MM CZ pistols.

I only shot a few of the Winchester 115 grain FMJ ammo and it was both dirtier and less accurate than the Federal ammo.

In testing a 5" M&P 2.0 9MM I found it did it's best with Winchester 124 FMJ NATO ammo.  I tried that in the P01 and it did not prefer that ammo.  Function was fine, groups were not.  Don't know if that's Winchester or the bullet weight.

I've tried a bunch of 147 grain reloads.  Lead 147 grain, coated 147 grain, Rainier 124 grain hollow points with AA#5, Red Dot, Bullseye, Unique, Blue Dot and not found a single load that shoots like the 115 grain ammo.

I sort of lucked into a 115 grain load with Blue Dot powder (I use it for .40 S&W so I tried it in 9MM) that is about 10% below max in my reloading manual.  I really haven't tried other powders in 115 grain bullet loads (should have) yet. 

I bought several other powders to try but was more for the 124 grain load development for that expensive M&P 2.0.  Again, the few rounds loaded for the M&P that seemed to be the best of those batches didn't impress me in the P01.  No work, with those, for the 115 grain bullets, so far.

Lots of people report good groups with 124 grain bullets in their CZ 9MM pistols.  I'm hoping I can get some figured out for my pistols at some point.  Right now, I'm just blessed with lots of 115 grain bullets and only a few 124 grain bullets.

[Wobbly]

Welcome Aboard !

IMHO.... Target wise... If you look at the twist rate of the CZ barrel, they seem to be cut for 124gr. And in close range shooting, 124gr does seem to have a slight edge. 115gr seems to excel at longer distances because of greater speed and thus less drop over distance.

As to loads, loads fall into general ranges, but each gun ends up being fairly individual. I invite you to work up your own loads because loads ALWAYS end up be rather personal. Case in point... loads for what purpose ?? Target, competition, self defense, hunting, exactly what ??


You'll find that loading for the CZ may require improved loading skills. I invite you to review the information in the Stickies.

Hope this helps. 

[Fuzzy Sights]

Every gun is different and may prefer a different bullet, not just bullet weight.  The 9mm round was set up for 124gr bullets, usually with a 1-16 twist.  Most CZs have a much faster twist 1-10 (actually it is like 9.7 or something) so you would think a longer bullet would be best (147 gr.) I have, so fa,r not found that to be true.  Best accuracy loads have been with 124s, best energy loads have been with 115s, though not by much.

Good luck.  Reloading is many times an adventure.

JW

[Wobbly]

Welcome Aboard !

As to loads, loads fall into general ranges, but each gun ends up being fairly individual. I invite you to work up your own loads because loads ALWAYS end up be rather personal. Case in point... loads for what purpose ?? Target, competition, self defense, hunting, exactly what ??


You'll find that loading for the CZ may require improved loading skills. I invite you to review the information in the Stickies. 

Furthermore, it would really be helpful to tell us what powders and bullets you currently have, since I doubt you'll be "swinging by the local gun store" on your way home and be able to purchase the items we might suggest.

[bang bang]

welcome,

its easy to start where someone has done the work and got what they want.   but somethings will require you to reinvent the wheel. Its not something you or others may want to go, but sometimes its necessary. 

Also, you dont know what others have modded on their gun either.  Or you may have modded or will have. 

if/when you buy more guns and different guns you may see the difference and similarities in them and that goes for what fodder each guns likes or dislikes.  You may feel that there should not be any difference since they are "just guns" but thats something you will need to learn and experience for yourself.

something else.  Also, im not picking on you but i am being picky on the words used.  That being "accurate".   Alot of noobs/noviecs just toss out words like "whats the BEST this or that".  its like you are buying a "best fast" car.  Whats "fast"?.  but Accuracy can and should have a number attached to it.  Such as 5 inch group, at 100 yards, free hand with open sights.  get the idea?    Or you have its accurate such as "it will hit the earth at 5 miles with scope and bench".  Gravity will let that happen, but im sure you have and idea on what "accurate" means to you or do you?    If you have an idea on "accurate" you may want to state it.   

good luck

[cracker57]

 Thanks for the welcome  wobbly, I am hoping to find a sweet spot with w231 and the precision delta 115 gr rn fmj. those I have a few thousand of.

 

[Wobbly]

Thanks for the welcome  wobbly, I am hoping to find a sweet spot with w231 and the precision delta 115 gr rn fmj. those I have a few thousand of.

Sorry, I don't shoot enough 115gr to help you.

Years ago I did shoot a lot of PD 124gr RN. As I remember, I used an OAL around 1.125".

[Dan_69GTX]

WELCOME!  Precision Delta is a great bullet (there are other great ones too).  For competition I exclusively use their 124 JHP with Bullseye powder in my Target 2 pistol.  I also use some Silhouette at times.  Not knowing what OAL you can do I'll just state I load to about 1100FPS which is low 4's gr powder for bullseye and about 5 for Sil.  If you are new to CZ make sure you check your OAL using the plunk testing (in the stickies at the beginning of this forum).  I found I can load longer in my competition gun than I can in my son's Tactical Sport.  His gun prefers the 115 weighted bullets.

Remember to do OAL determination for EACH bullet you try not just for each weight or style.  EX:  I load a different OAL for the PD 124 JHP than I do for the Hornady XTP.  A friend of mine doesn't understand that and has had many issues including damaging one gun.

In My CZ Target 2 I can get better accuracy with the 115 when I slow them down some - but then I don't make power factor.  If I remember correctly I used 231/hp-38 for those.  Bullseye was too dirty at those lighter loads.   I loaded a lot of powder puff loads when my dad was able to shoot - much less recoil for an 80 year old to handle.

Don't forget to change your recoil spring (if necessary) once you find what load your gun likes.  I swap springs depending on how hot my load is.  I never load near max - for me accuracy decreases.

An example of folks saying each gun is different - I tried a variety of some coated lead bullets in 124. I had OK accuracy but lots of leading issues.  Where others have better accuracy and no leading issues..  Tried a variety of manufactures of powder and bullets.  Now in my Scorpion I use the ACME 124 with GREAT results.  Then that same load sucks in my S&W.

Joe L is THE bullseye dude.  He doesn't reload - he uses factory ammo - and does GREAT!!  Check out some of his videos - helped me understand a bit more of bullseye and grip and ....

No idea what your gun/reloading experience is so hopefully you take this as trying to be helpful and not insulting.

[cracker57]

Dan_69GTX
 thanks for the info, I tried a load I have for my S&W Shield but I had to seat the bullet for it to chamber in the 75b. I am loading 4.7 grain w231 with the 115 dp fmj. with the warmer weather coming i can bring out the chrono and get to work.
 Wobbly 1.125 is the oal I am using for now..
Thanks for all the help

[Wobbly]

I tried a load I have for my S&W Shield but I had to seat the bullet for it to chamber in the 75b.

If this was a surprise, then that tells me you haven't bothered to read the Stickies.

I am loading 4.7 grain w231 with the 115 dp fmj.

That will probably just barely make PF, but it's a starting place.

Wobbly 1.125 is the oal I am using for now.
Thanks for all the help.

Because I said, or because you've measured you chamber with this bullet ? This is not a taunt, but a serious question. I'd really like to know.

115gr is a shorter bullet than 124gr in the same configuration. You'll want to do some calculations to insure you're getting enough seating into the case.

All the best.

[Rcher]

Someone told me that 124gr is  the military standard for 9mm Luger, so I stick with this. Whatever was proven in battlefield for more than 100 years of practice is good for me.

[cracker57]

Wobbly,
 I did measure this oal with my chamber, 1.125 chambers and cycles perfectly.
 I will keep my eyes out for some 124 gr, but for now I have a good supply of 115 gr.
 thanks for the info everyone.

[Dan_69GTX]

Wobbly,
 I did measure this oal with my chamber, 1.125 chambers and cycles perfectly.
 I will keep my eyes out for some 124 gr, but for now I have a good supply of 115 gr.
 thanks for the info everyone.

Cracker57 - what did you come up with for your MAX OAL for that bullet?