Ordering Dies for .243 Win

[DocDoc]

I have a Savage 12 with a 26" Shilen varmint match barrel. The loaded round measures 0.274 at the neck. The fired win case measures 0.278 to 0.279. I want to order the correct size bushing for a Redding Type S F/L die. I think it should be 0.272 and probably should order 0.271. Does this sound correct? Is the 0.006 to 0.007 too much to do in one pass with this style die? Do I need to order something intermediate?

 

[DennisH]

I want to order the correct size bushing for a Redding Type S F/L die. I think it should be 0.272 and probably should order 0.271. Does this sound correct?

I would have the above two plus a .273. Start with the .272 and see how things go.

.002 or less neck tension is my preferred for match shooting, bolt actions.

Any other type rifle, I would go at least .270

Is the 0.006 to 0.007 too much to do in one pass with this style die?

Shouldn't be a problem. We neck size brass up with no issues. Example: 300 RUM neck sized up to 338. 6-7 thou shouldn't be an issue. I also neck down necks, 6.5 to 6.0mm (.264 to .243)

Most of my dies are Redding.

 

[jonbearman]

If it is a standard chamber then I vote for a standard redding or anybodys die as trying to go that much in one sizing is pusing it.It doesnt work well with my .260 no turn,I have to step it down in increments without much force however in one busing sizing it is a bear.Just get a std die and be done with it,or use the lee collet die.

 

[243winxb]

This is what i use with Win. brass.

 

[DocDoc]

I have the Redding standard FL die, but wanted to avoid working brass more than necessary. Also, to possibly improve run-out on the loaded round. Another toy to play with to see if I can get the rifle to shoot better.

The loaded round is 0.274, so 0.272 should be correct for the bushing, but with the fired case neck measuring 0.278 to 0.279, I was not certain that would work well with one pass, as it might "oversize" a little. Choices seem to be try 0.272 and see what the sized case turns out, as it might be fine. A second option is to size down part of the way, then with the 0.272. A third, if it sizes a little more than desired, use an expander mandrel to bump it back up.

Is one of these the best option?N

 

[DennisH]

The loaded round is 0.274, so 0.272 should be correct for the bushing, but with the fired case neck measuring 0.278 to 0.279, I was not certain that would work well with one pass,

Doc, my measurements run about the same as yours. I normally make on pass with a bushing .002 than a loaded round. I use an expander mandrel to make sure the inside of the neck is trued up.

I have 15 to 20 firings on some of my brass.

Just for the record, I have more trouble with the primer pockets loosing up, mainly due to pushing the load to the max.

JMO, Dennis

 

[DocDoc]

Thanks all. I think I know what I need to do, now to try to find the right size bushings from a supplier, Midway is backordered for most.