Thread: Brass shortages - options for serious wild cat conversions ?

Yes hard to get an accurate photo, but also not the finished product yet. I’m going to neck turn it first then use FL die with recapping rod to give it a final tweak. Then we’ll see how it chambers. The N28 starting case is 35deg shoulders where was the 7BM and most of the other 375 RCM derivatives are 30 degrees.

At this stage no 7mm PRC brass in NZ, otherwise I’d give it a try.

Originally Posted by chainsaw

At this stage no 7mm PRC brass in NZ, otherwise I’d give it a try.

Might be some



I still have some Norma 7BM brass, the price is quite

will it chamber??? will answer that question...

Originally Posted by Micky Duck

will it chamber??? will answer that question...

Not quite & don’t want to force it. I have FL sized using my normal FL die settings which I’ve used for regular Norma 7BM brass but feels like I need to wind the die down another 1/4 turn or so, and bump the shoulder back a tad more. Thicker brass in the shoulder area now given I’m well into what was the case body walls of the original 28N case.

Looking good

Thought about starting with a LRM case?

Yes, thought about lots of different 375 RCM derivatives. Had N28 in hand so thought I’d give it a whirl to see what I could learn and achieve with a basic reload set up. Ideally I’d start with something closer to the 7BM dimensions. Any one got some 300 PRC or 300BM brass I could get a case to try?

https://www.nzhuntingandshooting.co....um-info-42743/

That’s the image I had burnt in my brain in terms of LRM to BM being fairly close in size I don’t have any of those 30s to send sorry I’m sure someone will chime in who has one

Thanks @Kelton, the 7 LRM looks like a good candidate & so does 300 Norma.

Good work Chainsaw.

Even after neck trimming I expect you will get doughnuts, requiring inside neck reaming. I think you will also need to trim neck length every time as there is a lot of brass to flow in the neck and shoulder.

Hope you get it going.

From memory 7LRM is a derivative of 7-375 Ruger, but the resizing is also a multi-stage job.

Originally Posted by chainsaw

Thanks @Kelton, the 7 LRM looks like a good candidate & so does 300 Norma.

300 Norma is lapua bolt face from memory mate if you want to try a piece of LRM brass sing out

Yep,you’re right. 300Norma is a 338 LM bolt face which I realised once I checked the Saami specs. bugger ! But hey a 300Norma necked down to 7mm would make one very interesting wildcat.
If you have a 7LRM case or two to spare I’d love to have a go at resizing that.

Originally Posted by chainsaw

Yep,you’re right. 300Norma is a 338 LM bolt face which I realised once I checked the Saami specs. bugger ! But hey a 300Norma necked down to 7mm would make one very interesting wildcat.
If you have a 7LRM case or two to spare I’d love to have a go at resizing that.

7mm long range hunter and the improved versions were Duleys 7mm FX and Abe’s 7mm screamer it was lightning 3400fps with 180vld from memory il flick me a pm re brass

The price of anything these days is farkn