I will be reloading for a TC pro hunter in 300 win mag. I'm looking at a Redding competition neck die set. Once I find my headspace and I just neck size for a few reloads the case will stretch a bit. Will I have to do a full length resize to push the shoulder back .001 or I've read about partial resizing? What would be the best way to keep headspace on these shells that is if they don't have any problems with feeding in the first place. I am a little confused at the moment on what my options are. I have a set of RCBS dies for this caliber and think the expander plug may be worn a bit and want to upgrade to the Redding dies. Will the change in case capacity of the sized case cause problems with pressures from just being neck sized?

I don't think you will see a pressure change from just neck sizing but you will get growth of the case that will eventually stop you from closing the bolt. You will then have to do a full length and start the process over again.

northwoods

Don't know whether you caught this thread regarding Redding Bushing Dies. As far as I know the bushing type dies are the only competition type Redding makes.

There are other choices.

The Lee collet die looks to be the ticket. Maybe just what I need in my factory chamber.

Woods,
Did you get any trigger time this weekend? I got all my stuff ready and the range closed for a national pistol competition.

quote:

Originally posted by Dwight:
Woods,
Did you get any trigger time this weekend? I got all my stuff ready and the range closed for a national pistol competition.

Dwight (I suppose you were talking to me), yes I went yesterday. See if I can relate it to this thread:

This was the 6th loading on some Nosler 280AI brass. They were neck sized with the Lee Collet and body sized with the Redding Body Die. The shoulder was pushed back .0015" when I body sized. The runout on 50% was less than .001" and on the rest it was less than .002" after this treatment. Seated with the Redding Competition Seater and the runout was the same on the bullet as it was on the case neck. Then they were crimped with the Lee Factory Crimp and further straightened with the Bersin tool to all less than .001" runout.



I was testing different primers; Federal, Remington and CCI, magnum and large rifle. Federal 215M did the best, CCI was also good.

Of course there was the bad with the good. Had a case head separation on the second shot with the 338 win mag. It ejected fine and then fell apart. Didn't shoot anymore with it. Just stretching new Nosler brass in the 30-06 in preparation for neck turning.

Beautiful weather, turning windy and rain by the weekend here. Maybe it'll be your turn this weekend.

Looks like you had a good day and should be able to hit a deer with that load. I have only tried one RL powder and it was the 19 and it was terrible in my rifle (300SAUM). Varget and H4350 are my go to powders. The last brass I shot to stretch was couple weeks ago and it was Norma for the 300SAUM and 10 shots were in a 1" hole so I decided I was wasting powder and bullets with that exercise. I will just load the remaining ones and put them away for hunting season.
I got a HS Precision stock in Friday that I was going to glass bed for one of my 708s and the bottom slot was off center on the mag box so I had to send it back and will not have another till next week so I may pass on range time this week too.