.357 Sig seating die

[EBShooting]

Forgive me if this has been asked before, I tried the search and came up with nothing.

I am trying to find if there is a good seating die out there for 357 sig. I have the RCBS 2 die set and I don't care for the seating die. It is inconsistent. i get about 5% that either get seated to far or it tears off a chunk of the copper jacket. Or is this just another part of why no one like loading this round?

thanks guys,

Eric

 

[rcmodel]

Sounds like the seating stem doesn't match the bullet shape you are using.

RCBS can fix ya right up with a different stem better matched to the bullet shape.

rc

 

[cfullgraf]

I am trying to find if there is a good seating die out there for 357 sig. I have the RCBS 2 die set and I don't care for the seating die.

If you only have a two die 357 Sig set, you are missing a die. You should have a resizer, mouth expander and a seating die.

A properly expanded mouth will eliminate shaving the jacket on seating if the bullet is seated straight.

Also, what rcmodel said about the seating stem.

 

[rcmodel]

Most bottleneck handgun dies come in two-die sets just like rifle dies.
Including the RCBS .357 SIG one.

rc

 

[jim243]

rcmodel, you should get the Lee pistol die sets, they are all three die sets with the exception of the deluxe sets that are four die sets (Factory Crimp Die - 4th die).

EB, if you don't have the powder through die you are not flaring the case mouth and that's why you are tearing off copper on your bullets.

Jim

 

[unknwn]

I found the Hornady New Dimension die in the proper caliber range to be the most satisfactory choice.

 

[cfullgraf]

Most bottleneck handgun dies come in two-die sets just like rifle dies.
Including the RCBS .357 SIG one.

rc

My 357 Sig die set and my 38/45 Clerke die set each have three dies just like straight walled handgun dies.

I had not seen the RCBS two die set before. Learn something every day.

 

[hAkron]

I resize first with an RCBS .40 die, then ith a Lee 357 Sig die. I used to use the lee expander to expand, now I use my powderfunnels.com Universal PTX. I use a Redding micrometer competition seating die and I crimp with a Lee FCD.

 

[EBShooting]

I use a dillon 550, so the powder station flares the case mouth. The die came with two stems, one for tmj and the other for round nose. I am using a 124gr FP copper jacketed bullet.
But I found the tmj stem to be even more inconsistent, in fact I could never get a consistent bullet depth with it. So I switched to the RN stem and had much better success.