17 WSM brass, has anybody derimmed it yet?

[Bills Shed]

A mate and I have been throwing around ideas for .257" projectiles.
I was thinking 17HMR brass but to expand the brass may be more that I want to go to, so what about 17WSM brass?
I am comfortable with annealing and drawing it down, we have the lead wire making sorted, trimming, I have made the machines, the derimming of this brass .....I have not.
Has anybody done it? How thick was the brass? Drawings?

Bill

[Bills Shed]

Pretty quiet then. Best I sort it out and make it happen.

[clodhopper]

I have about a gallon of brass but not done anything with it yet.
If you have no brass I will section a piece and get some rough estimates of brass thickness.

[Bills Shed]

I have some brass here so should be right. I was hoping to hear of actual experience and maybe a drawing of a derimm die for the WSM case.
Here the WSM has only a small following and getting brass may be a issue but that is not going to stop me from having a go.

Bill

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[BT Sniper]

I cut the neck of 17 HMR off at the shoulder then use it for 6mm bullets, certainly wouldn't be difficult to use for 25 cal too. I was able to use the 22 mag for 6.5mm bullets so .257 should certainly be possible, but attempting to neck up the 17 hmr......... seems easier to me just to cut it off.

Swage on!

BT

[BT Sniper]

Now 17WSM..... that should make excellent jackets, I have a few yet haven't used any yet..... lots on my plate.

Swage on!

BT

[Bills Shed]

Hi BT,
I do plan to chop the shoulder off. I selected the WSM as the base OD is bigger than .257”
If I derimmed it, I could them draw it down to the correct diameter, which I think would be better than streatching it that far. Same as derimming the 22mag and drawing it through a 22LR derimming die to make heavy .224” projectiles.

Bill