Reloading for CZ 75B?

IM_Lugger

IM_Lugger

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My Beretta eats anything as far as reloads go. :cool: So I never had to tweak my ammo for reliability/functionality for that gun.

But is there anything I should know before I make a batch of ammo? I heard before that they have a problem with longer OAL and that heavier 147gr bullets work better. Is that true? anything else?


(I'm waiting for my ATT renewal so I can't go and test it out).
 
I ended up with loading 124/125gr bullets with OAL 1.08". 115gr seem to be a bit light and 147gr are more expensive and I also didn't see any advantages over 124/125gr.
 
The 9MM barrels twist rate favours the 124/125 gr bullet. That said the lighter and heavier bullets work well. Felt recoil can be reduced somewhat by shooting the 147 gr bullets. The heavier bullets are slower and you don't get the torque effect more evident using the lighter bullets/

Some have experienced a failure to stabilize the heavier bullets in their guns. I haven't yet.

CZ's have a reputation for tight short chambers so you have to watch your OAL. Easiest method to determine your max. OAL for your pistol is as follows.

1. Remove the barrel.
2. Measure the length of your bullet you are going to use with a caliper.
3. Drop the bullet in the chamber and measure from the base to the top of the barrel hood where the case sits flush.
4. Add the two measurements together and then back off a few thousandths.

Take Care

Bob
 
I did it by dropping a dummy round (no primer no powder) into the barrel and seating the bullet deeper in the case till it doesn't hit rifling and then a tad deeper yet.
Each bullet design will require re-adjusting that OAL for the rounds made with new bullets due to bullet shape.
 
Mine really likes the 135 gr LRN. 4 gr of 231 makes PF of 125. Recoil is mild.

This is a 20 yard target.

CZ75BGROUP2.jpg
 
My 9 mm CZ-75B Recipes = 4.3 gr. of W231, 124 gr. FMJ, OAL 1.15.
4.6 gr. of W231, 115 gr FMJ, OAL 1.15. The 124 gr is slightly more accurate than the lighter 115 gr. load. Recoil is moderate in both and very controlable.
 
I've got a couple thousands of 124's and some 147's...

I like to load on a warm side so usually go for longer OAL over 1.15" but I just loaded some ammo last night for my BB course IIRC OAL was 1.144 IIRC...I'll try to see if it fits CZ barrel. but the ammo is for by 92fs so it's o if it won't fit :)

A simple method to check the chamber is to hold the barrel in your hand and drop the round in (from ~ an inch hight) than slowly tip it over and if the round sticks the bullet is touching the rifling. take it out push the bullet in a little farther do the same thing until the round falls out freely :) All my 9's had a different number, now I just have the 92 and the 75 in this caliber. IIRC Beretta can take a way longer than max OAL than the max spec. 1.169" I think it was almost 2" that's what I call deepthroating :p
 
I load 124gr Montana Gold with 4.2gr Tightgroup and an OAL of 1.10". I went down to 3.9gr and a lighter recoil spring but I found the brass wasn't expanding enough to fill the chamber and the getting quite fouled. It shot fine but I'm already used to the recoil from the 4.2 grains so I went back to that.
 
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