SAC "The seating die" horrible runout

[4O6shootist]

Maybe I missed your results, but did the die have an issue and get fixed/replaced/modified by SAC to fit the bullet profile?

New brass and the 90 atips I think was the problem. I switched to 85.5s and 88s in new brass, and the majority of the issue went away. Maybe the alpha 22gt had runout prior to seating but the ones I checked were straight.

 

[smoothy8500]

90 a-tips.....85.5s and 88s the issue went away

OK, I wasn't sure if you had sent in the seater to get modified/switched-out or if you used a different bullet profile like the tech support mentioned.

 

[padom]

New brass and the 90 atips I think was the problem. I switched to 85.5s and 88s in new brass, and the majority of the issue went away. Maybe the alpha 22gt had runout prior to seating but the ones I checked were straight.

I have found 0.005+ and sometimes MUCH more runout with virgin brass that then shows 0.0005-0.001 TIR after seating bullets in fired brass so that would make a lot of sense.

 

[4O6shootist]

I have found 0.005+ and sometimes MUCH more runout with virgin brass that then shows 0.0005-0.001 TIR after seating bullets in fired brass so that would make a lot of sense.

That's using your Wilson inline dies? I could see them straightening things out upon seating if so.

 

[padom]

That's using your Wilson inline dies? I could see them straightening things out upon seating if so.

That's with SAC and Wilson I get those results with fired in my chamber brass that has then been bumped back 0.0015-0.002, neck squeezed down 0.004 under loaded diameter then opened back up 0.002 with my 21st Century mandrel...

The biggest difference i see with the LE Wislon vs the others is the dead nuts consistency of seating depth round after round and the exact 0.001 seating depth adjustment from one line to the next.

 

[rustyinbend]

Recently loaded up ammo for last weekends match. 22gt 90 atips 35.8gr H4350. I have a zero press, tossed the new SAC seating die in. Seated 20 bullets and had a range of 007 to 003 total indicated runout, avg around 004. Removed the die, installed my Hornady 6gt seater with 88eldm stem in place. Seated the remaining loads for the match, worst measured total indicated runout was 004, avg close to 002. How can a company charge near 400$ for a die that gives crap. Results? I'll likely be returning mine. I was hoping to eliminate several seating dies with this one die, but I will not accept this poor of results for the premium price SAC charges foe this item.

Interesting thread. I guess my only contribution to it would be my personal observation that "multi-caliber" reloading stuff (like this multi-size seating die) will pretty much "never" be better than components designed for one purpose and one size. Pressing the "Easy Button" for stuff like this has never worked for me. But that's just me ...

 

[rustyinbend]

That's with SAC and Wilson I get those results with fired in my chamber brass that has then been bumped back 0.0015-0.002, neck squeezed down 0.004 under loaded diameter then opened back up 0.002 with my 21st Century mandrel...

The biggest difference i see with the LE Wislon vs the others is the dead nuts consistency of seating depth round after round and the exact 0.001 seating depth adjustment from one line to the next.

Very similar to what I do, with great consistency. Anneal (AMP), shrink (bushing die), expand (mandrel), charge and seat. Only addition to that is my advice to you all to take a hard look at the AMP Press ... it's awesome ... not cheap ... but awesome nonetheless.