7mm08 Lee collet die for 7SAUM?

[omega1]

Has anyone successfully used the Lee 7mm08 collet die to neck size 7mm SAUM? Or can I just use the 7mm mandrel in a 300 WSM collet die body? Just trying to figure out if I can get this accomplished using some pieces I already own. Thanks for any help.

 

[fyrewall]

It should work because the neck diameters and cartridge lengths of the 7mm-08 & 7mm RSAUM are very close and the inside neck or bullet diameters are identical. Never tried it - but my 6mm Remington Lee collet die works just fine with 6mm AI. If any problem occurs it will be because of the body diameter difference at the shoulder.

 

[Dino67]

Has anyone successfully used the Lee 7mm08 collet die to neck size 7mm SAUM? Or can I just use the 7mm mandrel in a 300 WSM collet die body? Just trying to figure out if I can get this accomplished using some pieces I already own. Thanks for any help.

I use the 7-08 mandrel and collet in a 300wsm die, works perfectly.

 

[fyrewall]

I would encourage you to not to neck size a 7SAUM. I have used Lee collet dies in the past and they work quite well for a couple/three firings but then the chambering problems start. Then someone will tell you to start using a body die, etc...

The question really is what is about the LCD that appeals to you?

Joe

I guess one would need to F/L resize again. They appeal to me because they are cheap and produce good ammo. Some how, possibly by intuition, I usually feel the urge to F/L size before I need to squash a round into my chamber by using the powerful cam forces of my bolt action rifle. Lee does say their LCD's should not be used with other than bolt action rifles.

 

[JohnKielly]

The question really is what is about the LCD that appeals to you?

They produce straighter brass than anything I've tried.

 

[JohnKielly]

Joe,

IMO the only useful FLS die is one fitted for the chamber I'm using & I'm not prepared to pay that money for every barrel I install. The average off the shelf FLS die sizes the neck more than I want and/or to a different degree depending on the brass I'm using, the consequence of which is that the neck needs to be modified by dragging a button back thru it, which may or may not attenuate the shoulder to a degree that makes the shoulder bump component irrelevant & may or may not skew the neck depending on the quality of the shell holder used.

You're correct that it may be necessary on occasion to size cases somewhat & I get by with a body die to do that generally, then neck size with the LCD.

John

 

[omega1]

Thanks for all the input. I have had great luck with the Lee collet die with .308, .243, 260 and .300 wsm. I would just go buy one if they were available on the shelf for 7SAUM but it would need to be a special order from Lee. I found I can get great results quickly with little effort . I do FL resize after 3 or 4 collet sizings but I do like the no lube convenience of the LCD.

Thanks Dino67 that's exactly what I was hoping to hear. That's the route I will go.

 

[Murray Brook]

I would think that as long as the 7mm saum case fits inside the 7mm/08 collet it will work. Along the same lines I use my 25/06 collet die to size my 257 Weatherby mag cases. Works great.