Help design the NZHS Forum Wildcat - Part 3 - Case

[tui_man2]

Whats happening with thes? has it gone any firther?

[Spanners]

Will do when i get hm

[tui_man2]

Will do when i get hm

what was the end desison?

[7mmsaum]

what was the end desison?

Tui_man2,
Im also interested in the end decision , Id choose something that handles well and fits like a glove, is light, and powerful -with precision.

Senator stock in Sako 75 exterior dimensions
Model 7 action (ssrnz.co.nz clone)
22" TF
ssrnz.co.nz 3 lever Trigger
Terminator Products T2 Muzzle brake (optional) same thread fits suppressor (also optional)
Calibre 7mmsaum

[Grant]

I could suggest a good barrel ........

[Normie]

I bet you could. Does that mean you would be keen on a group buy type/NZHS rifle thingy?

[distant stalker]

I'm pretty interested if we go the group buy way, would need to choose an action that has left handed options though...

[Grant]

I bet you could. Does that mean you would be keen on a group buy type/NZHS rifle thingy?

Sure, we'll sort something out.......

[Titanium]

I have been trying to decide what to build along these same lines so am interested to see how this goes.Is it worth doing a group buy until the rifle has been tested.Im wondering how it will feed as ive told that there can be a few issues when using this sort of brass.Ive already got a barrel and stock and have been trying to decide whether or not a short action is going to limit me so am all ears on this project.

[Spanners]

Its going to go ahead.
Will be sorting some more details while I'm away for this next contract and will try and get a reamer price and form dies etc sorted

[Terminator]

Its going to go ahead.
Will be sorting some more details while I'm away for this next contract and will try and get a reamer price and form dies etc sorted

So what is the new case going to be?

[NZVarminter]

I looked at a short 284, but you need to push the shoulder back 0.25 to get similar cap as 308. So capacity somewhere between 284 and 308 would work. Problem is you will want to use Lapua 6.5*284 brass, and Lapua brass has a thicker shoulder thckness compared ot the neck, so when you push the shoulder back you will be forming the neck out of shoulder material and need to neck turn to remove the "donut"

I dont beleive SAUM brass has variations in wall thickness, but htne your usign a mag boltface.

[yerimaginaryM8]

here's what I did 7mm saum shortened 200 thou. I wanted to shoot one bullet (162 amax at 2800 or so) and I wanted it to feed out of the mag of my model 7 and easily reach the lands. Its been a major learning curve, with heaps of unforseen issues along the way, but I'm nearly there.


Big thanks to Mitch Maxbury who sorted the rifle and gave lots of useful advice and encouragement and Greg Duley who I also pestered. The history and some of the headaches are covered in here, here and here on another forum. Knowing what i now know, learned the hard way I would do things a little differently if I was to do it again.

[Shootm]

Spanners.....So where is this at?
Has it died?
Or is it still a going?

[7mmsaum]

Shootm, perhaps he's internalising a really complicated situation in his head "what S/A wildcat is better than a SAUM"