Is there anybody out there ?

[JuneGrass 8]

Originally Posted by rhuff

Crimping on a non-cannalured bullet will not stop setback of the bullet, neck tension is what does that. In fact, if you overcrimp the case mouth, you can make things worse. What is the diameter of your case neck expander? What is the measured diameter of your bullet? In the 30 luger brass, I strive for .003-.005in. of interference fit so as to get as much neck tension as possible. You will still get a few thousands of setback, but that is of no concern. If setback is excessive, that is concerning. I have started to add a cannalure to my jacketed bullets, and then the collet crimp into the cannalure to give myself the best protection for setback. My 30 luger rounds are loaded near/at max loadings, and I can not afford setbacks.



Apparently Sieger types faster that I do!!

rhuff ,
The Lee dies I have came with a .307/8 expander plug , and the cast bullets I have are .312/3 . I have loaded a few more dummy rounds , with no crimp , and my set back is much improved ( operator malfunction ) . Probably in for a new set of dies that I`m more familiar with . By the way , that outfit in Montana ( Western Bullet Co. ),he has apparently lost his molds for the 90grn 30cal. cast bullets , and isn`t in a big hurray to replace it because he has not gotten back with me concerning a possible order , but that doesn`t diminish my appreciation for your recommendation , Thanks again , Don

[Sieger]

Originally Posted by JuneGrass 8

rhuff ,
The Lee dies I have came with a .307/8 expander plug , and the cast bullets I have are .312/3 . I have loaded a few more dummy rounds , with no crimp , and my set back is much improved ( operator malfunction ) . Probably in for a new set of dies that I`m more familiar with . By the way , that outfit in Montana ( Western Bullet Co. ),he has apparently lost his molds for the 90grn 30cal. cast bullets , and isn`t in a big hurray to replace it because he has not gotten back with me concerning a possible order , but that doesn`t diminish my appreciation for your recommendation , Thanks again , Don

JuneGrass & rhuff,

Here is how to cure your setback problem.

Go ahead and full length size your brass with the sizer button intended for the .308 diameter bullet.

Purchase, from Hornady, their separate expander die for the .32 acp cartridge. This will properly handle your .312 to .313 lead bullets, as well as, your FMJ .312 bullets. You will have to call them, as I haven't seen it for sale otherwise.

Expand your cases just enough for the lead bullet to clear the edge of the neck.

Seat to 1.173 inches of O.A.L. (no crimp, separate operation) with your seating die. If your necks want to buckle, then expand deeper until things square up.

Make sure you make the top of the neck parallel with the bullet as seated (separate operation) with your seating die.

You will now have a nice friction fit bullet, tight friction coming from the base of the neck.

You will no longer experience setback upon loading.

I've used this process for years with both my 7.65mm Luger and 8mm Nambu and it works great! I first learned this little trick while handloading for the 45-70 straight wall cartridge.

Hope this helps!


Sieger

[rhuff]

Years ago I purchased a Lee 3 piece die set for 30 Luger. I tried and tried to get the results that I wanted/needed, but could not. The sizing die(inside)looked like it had been finished with a rattail file!!Maybe I just got a bad one that slipped by QC, I don't know. It would not correctly size the neck to correct ID/OD size for reloading. Also, the expander was too large for loading .308in bullets. Anyway, Two of the three dies went into the "round" filing drawer, and I kept the seater die. I use an RCBS sizing die with a correct size expander. I load on a Dillon 650, and reduced the powder through/expander by .001-.0015in. for good neck tension.