CZ 75 TS Fail To Feed 40 S&W

grinder08

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So I have developed a bit of a fail to feed problem with my TS. I have never had a problem with full power factory loads but even a small drop in power on factory or reloads causes fail to feed issues. As I don't like to reload to max power I was wondering if there is another solution for the fail to feed issue. I am getting on average about 2 FTF's per 10 round magazine. I suspect a small change in spring strength might solve the problem. Otherwise I guess I just have to load a little hotter which is not my preferred route given the the 40 is already a pretty hot load. I like a little margin for error.
 
What kind of fail to feed malfunction are you experiencing? Is the round jamming on the ramp? What profile bullets? Overall length?

It is not feeding into the chamber properly. Seems to jamb about the case rim. Bullets are standard 165gr truncated cone. I haven't checked the cartridge length as they are commercial reloads but I will do so. It almost seems like the slightly lighter loads do not have quite enough omph to fully drive the slide back so there is not quite enough speed to drive the cartridge home. This feed issue has happened with some commercial ammo as well. The ammo that the miss-feeds happen on always seems to have a bit less omph than the more common commercial cartridges.
 
It is not feeding into the chamber properly. Seems to jamb about the case rim. Bullets are standard 165gr truncated cone. I haven't checked the cartridge length as they are Commercial reloadsbut I will do so. It almost seems like the slightly lighter loads do not have quite enough omph to fully drive the slide back so there is not quite enough speed to drive the cartridge home. This feed issue has happened with some commercial ammo as well. The ammo that the miss-feeds happen on always seems to have a bit less omph than the more common commercial cartridges.

Did you get the reloads from CRS in Maple Ridge? I use the same ammo in my G22 and so far no problems at all. I was told he loads to IPSC power factor but I could be wrong. You probably need a lighter spring. Careful when using the lighter springs with full power loads though due to wear.
 
Due to CZ design softer recoil spring will cause less wear on slide stop but won't be as strong to chamber next round while allowing slide move back further to more positively strip next round from magazine.
Ideally one needs new but softer recoil spring.
 
When the mag is locked into the gun, is there a lot of movement?
A friends TS was jamming on the ramp a fair bit so he filed the space between the feedlips so it did not contact and slow down the slide and that helped a bit. He also made new bases for the mags whick took some of the wiggle out.
 
Don't cut any springs just yet. Failure to extract may be a result of lower powder load or too strong a recoil spring amongst other influences. Failure to feed could be a result of too weak a recoil spring, oversize ammo, bad mag etc. You don't want to cut a spring down because it's not chambering the ammo fully.

Remove the barrel from your pistol and grab some of the ammo, esp the ones that causes the issues if you set those aside. Drop the ammo into the chamber. Does it drop in freely and sit in the chamber properly or does it stick out a little? If you invert the barrel, does the ammo fall out on its own weight or very light shake/tap or do you have to pull it out with your fingers with some light force?

If it doesn't seat properly with some ease and you need some force to push it into the chamber fully, your ammo is at fault. Ammo shot from an unsupported breech or loose chamber will get fire-formed to that chamber and when the spent cases are resized, they may not resize all the way to the rim hence why they get held up back there. More prone are the cases fired from unsupported chambers.

I believe the CZ barrels are pretty tight chambered and I've had to run the ammo through a carbide factory crimp die to resize them for my buddy.
 
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Did you get the reloads from CRS in Maple Ridge? I use the same ammo in my G22 and so far no problems at all. I was told he loads to IPSC power factor but I could be wrong. You probably need a lighter spring. Careful when using the lighter springs with full power loads though due to wear.

Yes I did but I have also had the same trouble with one commercial brand I tried. Again clearly a lighter load.
 
Chamber check your rounds first to make sure they are not bulged (glock brass) and will chamber. I have run major and minor loads in my TS with no issues. my factory recoil spring works fine with major loads. I have gone down to 11lb recoil spring for minor loads. I tried an 8lb recoil spring with minor loads and it was a bit too light. Also make sure you do NOT use the shock buffers in the gun. I have 7000 rounds through my gun with round nose, truncated cone, major and minor loads. No issues. I have run 11, 12, 13 and factory recoil springs in it. I have loaded from 1.125 to 1.155 OAL with no issues. If it functions fine with factory power loads and recoil spring I would think for loading lighter loads you just need to get the right weight recoil spring to match. You can get them all from Wolf Springs. I would use 11lb for minor and 12 and up to factory for major loads. I have shot lots of steel matches minor/11lb. I shot the canadian IPSC nationals in major with a 13lb spring and the US IPSC nationals with a 12lb spring. NO issues.
 
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