I'm using a 223 lee collet die for my new 223ai. Using the 223 lee seater die also. I have a lot of groups with two in one hole and one flyer off to the side opening the group up. I think that a better seating die might help. I don't have anyway to measure run out. What sweater die is best for 223ai.

Redding comp says cannot be used with compressed loads.

Most of my dies are Redding Comp. The seaters are excellent. Haven't had any problem doing compressed loads.

I use a Standard Redding FL. I originally had some Lees, but had some weird seating issues. Kept the resizer and bought the Redding for seating.

I'm using a hornady .22 cal seater. It uses a sliding sleave and seems to do pretty well, although I confess- I havn't checked for runout.

Just ordered a hornady concentricity gauge to check and correct runout.

Anybody use one?

If the hornady gauge shows lots of run out and I cant correct it I will try the redding seating die.

Redding makes a great seater die (great sizing dies also) but it wont straighten out crooked necks, most run-out issues are caused by the sizing process.....you might want to start with a Redding bushing die

Forster makes a really good die set!

Redding

Look at the cheap or free solutions first. Thinking you might should try to adjust your seating depth. This is often a remedy for the 2 in 1 one out issue.

Ive got several loaded up to different depth to try.

not for the 223 ackley...

Redding Type S Bushing Neck Sizer 3 die set

Redding