Getting SWC To Feed In CZ97B

[Ohmslaw]

Do any of you guys have problems with swc feeding in 97? Mine doesn’t like my 185 grain Brazos coated Bullets. I have shot others maybe length curious about your experience and oal you use? They jam into feed ramp.
Thanks
Ohmslaw

[Sebspeed]

Following - I just ordered 1k Button #2 from Missouri bullet co...

[rdcinhou]

I've used the Magtech Subsonic SWC in competition and haven't had any problems.

My CZ97BE is 2015 vintage (after feed ramp design improvement).

I wasn't running a suppressor, I just like subsonic because I can see the bullet in flight for followup shot compensation.

[Dan Wesson]

I've used the Magtech Subsonic SWC in competition and haven't had any problems.

My CZ97BE is 2015 vintage (after feed ramp design improvement).

I wasn't running a suppressor, I just like subsonic because I can see the bullet in flight for followup shot compensation.

I also have a 2015 vintage 97B.  I shoot Acme 200gr coated SWCs with no problem.  I have also used MBC 230gr coated SWCs.  Also fed fine, but I seem to recall some interference from the slide stop lug early on.  Take a look at your slide stop lug and note if your SWCs that hang up have any marks on them from it.  I polished the lug corner nearest the magazine and feed ramp.  Seemed to fix all issues.  Just a thought.

[Wobbly]

The secret to the classic 185 & 200gr SWC in 45ACP is the amount of exposed shoulder.

In feeding a normal bullet, the ogive strikes the under-side of the hood and then glides into the chamber. But the first thing to hit on a SWC is the shoulder, not the meplat. So where the reloader positions the shoulder means everything.

•• So much so, that you need to qualify your rounds by head-to-shoulder length, and not by OAL. (Case head; bullet shoulder)



Small changes will make big differences. And the ammo will be particular to the gun and its chamber, not the bullet.


•• Understanding that, then you will comprehend that your seating die should be seating by (pushing on) the shoulder, and not the meplat.


Hope this helps.

[Dan Wesson]

The secret to the classic 185 & 200gr SWC in 45ACP is the amount of exposed shoulder.

In feeding a normal bullet, the ogive strikes the under-side of the hood and then glides into the chamber. But the first thing to hit on a SWC is the shoulder, not the meplat. So where the reloader positions the shoulder means everything.

•• So much so, that you need to qualify your rounds by head-to-shoulder, and not by OAL. (Case head; bullet shoulder)



Small changes will make big differences. And the ammo will be particular to the gun and its chamber, not the bullet.


•• Understanding that, then you will comprehend that your seating die should be seating by (pushing on) the shoulder, and not the meplat.


Hope this helps.

I should have noted this ^^^^^^ first before my comment about the slide stop lug.  @Wobbly is completely correct-- the shoulder exposure is the most common cause of poor feeding of SWC rounds.  His instructions are spot-on.
I always expose the shoulder of a SWC about .030, approximately the thickness of a thumbnail.  More is not needed.  Less is often the cause of feeding issues.

[Wobbly]

@Wobbly is completely correct-- the shoulder exposure is [paramount].  His instructions are spot-on.

In ammo, as well as several other fields of investigation...



 

[Ohmslaw]

Thanks gentlemen for help. I figured it out loads ok I thought since it was different bullet that was culprit. It turns out my slide stop I tried was all problems it is slightly different but enough to catch Brazos Bullets on feed. I went back original slide stop all is well.
Thanks again
Ohmslaw

[Dan Wesson]

Thanks gentlemen for help. I figured it out loads ok I thought since it was different bullet that was culprit. It turns out my slide stop I tried was all problems it is slightly different but enough to catch Brazos Bullets on feed. I went back original slide stop all is well.
Thanks again
Ohmslaw

So... what kind of slide stop were you trying?

[IDescribe]

I never got the button wadcutters to load consistently.

But if it is of any help, a post from a few years ago about a post from a couple years earlier:

I should add that these SWC have very narrow OAL window.  Max OAL is 1.275, and the shortest I could go and still keep a hair of shoulder above the case mouth is 1.232.  Here's a pic from my loading woes a couple of years ago when the pistol was new; it shows the maximum, minimum, and an OAL I had trouble with:




As indicated by the pic, I had trouble at 1.263.  They wouldn't feed.   When I found what would work, with a little help from JamesLovesJammie, I was shooting for 1.24 and got 1.237 instead.  Anything around 1.24 should be fine.  That's with these bullets, though.  You load SWC by the shoulder -- about 1/16th over the case mouth.  In my case, before break in, it actually required a little less than 1/16th.  So don't go by OAL until you've identified the proper OAL from the proper shoulder height.  With a different profile, 1.240 might be WAY off.

For the record, those 1.263 bullets, I had loaded lots and lots of them without testing (bad practice, especially with a brand new pistol,do not do).  Some time later, after the pistol was well broken in, they got fired through the 97, and they fed fine.

[Ohmslaw]

I had the gas pedal type for CZ75 goes in fine but nub little different on end. Changed back all good
Thanks
Ohmslaw

[tdogg]

In addition to the dialing in the shoulder height you will want to verify your crimp is proper.  Depending on what diameter your bullet is will factor in to how much crimp you need but 0.470 should get you close.

I ran 200gr SWC bullets in competition in my 97BD for years.  It's the only bullet I use in it.

https://czfirearms.us/index.php?topic=68170.15

Cheers,
Toby