Issues After Annealing 300 PRC

[Another Casual]

I anneal every firing. You definitely have to set the die again after you start annealing, but next time setback should be identical.

 

[jarnold37]

This may just be a perceived problem but I've never seen this before. I had 50 rounds of Lapua brass with two firings and decided it was time to anneal with AMP Aztec. Everything went fine with the annealing process but when I full length resized, I noticed it was just a little more difficult than usual. I say a little bit because the die has always seemed to be very tight to me (Redding Type-S Full Length Bushing Die). Anyway, my die is set for .002 setback and the first few I did bumped the shoulder back .004-.005. I suppose this could be due to lack of spring-back after annealing? I adjusted the die for .002 and continued resizing. I noticed every case has a thin shiny ring around the case at the shoulder junction. I measured the area and it was the same as that of a resized case that had not yet been annealed. I other thing I noticed was that the shoulder junction is now very sharp where prior to annealing it was more rounded. If you drag your fingernail down the shoulder you can feel it slightly catch at the junction. Is this normal? Almost makes me wish I hadn't annealed!

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I had a similar experience and was not getting brass hot enough. An engineer at a brass manufacturer told me to heat in a dark room til necks are orange and quench in water. The brass is then soft and consistent. I have tried many different methods and this seems to be the best way.

 

[jraulsten]

Just wanted to let all know that the good folks at Redding sent me a new sizing die........Problem solved.

 

[nwmnbowhunter]

Just wanted to let all know that the good folks at Redding sent me a new sizing die........Problem solved.

So the sharp edge is no more? Anything else it fixed?

My redding full length did the same thing.

 

[jraulsten]

No more sharp edges and easier resizing. 300PRC will always be harder than some due to the shape but it's 100% better now!

 

[EE_Reloader]

I just ran into this thread scrolling but I am curious as to what Redding said was wrong with the die. Or did they say nothing and just send you new die?

 

[jraulsten]

I just ran into this thread scrolling but I am curious as to what Redding said was wrong with the die. Or did they say nothing and just send you new die?

They didn't say and I didn't ask. Just sent a new die with a fired case sized by the old one and one by the new one.

 

[EE_Reloader]

@jraulsten, so their answer was nothing to see here folks, move it along...

 

[jraulsten]

@jraulsten, so their answer was nothing to see here folks, move it along...

That's the impression I got