Thread: Seating 7mm saum with 7mmRM seating die

As part of a deal I got some dies for my new 7mm saum - very well used/poorly cared for Redding 7mm Saum dies. The FL works well, just had to have bump the ram to chamber nicely. The seating die is putting big circular dents - not marks - into my 162gn Amaxs. Very bad for my OCD. I switched in a 7mmRM seating die and works fine. Can't see any problems with this...? I am not crimping.

The 65s are with the 7mmRM die.

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Originally Posted by Tikka7mm08

The 65s are with the 7mmRM die.

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Maybe 65 grains isn't enough of a compressed load to hurt the soft Amax when seating ?

I can give that a try...didn't feel like I was putting that much pressure on...but can be hard to know with a press.

Nope the 7mmRM die seated a compressed 67gn load no worries.

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This from the seller: Hi - oh that sounds terrible bob. What could be making it do that? I'm no gun smith but are you sure your not using the wrong die? I know Iv mistakenly used the sizing die to seat projectiles before and it puts a big hole down the middle!"

What a twat.

Have you tried swapping out the bullet seater cup with the other die set? If the shafts are the same it's a slick, quick change and might solve the problem.

Yes thought of it but didn't try has 7mmRM die is Hornady not Redding....and seems to work very well so not sure there is anything to gain even though I no longer load 7mmRM for myself.

Just got the 'how odd I never had any trouble with it' message.

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Very well cared for die.
Imagine how he described the rifle......


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...the photo looked mint... it isn't a showpiece, but AOK. The FL die looks a lot newer.

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Just ordered a new Hornady seating die from Outdoor Supplies for $48 delivered - problem solved. Sent account to seller, be interesting to see how he responds....not taking bets.

His reply is priceless !!

Obviously taking the piss.

...Although looking at the mark its leaving on the projectile, I don't think maintenance or the lack of it is the cause...
what brass is that?

I had the same issue when using 280 brass for my 6.5 06 ... Until I neck turned it.

300 saum Norma necked down. Yes we both were lucky I read rather than heard his reply.