6mm-204

I am.
25 Sharps was commenting on his rifle.
I'd love to shoot a roe or two, but they aren't local. At all.
 
Any one built and using one of these? Or experience with one. Chambering and reloading with one. Thinking of 80gn copper at around 3000fps. N133?
I am thinking of re-barreling a mini Mauser to one.
K
 
Im using 69 grain Hammer projectiles at 3300 out of mine, pushed by 8208. It sure puts the hurt on deer.
For goats a 70 tnt @ 3145 is just fine.
The Hammers are a driving band design and can be pushed really fast, but are too expensive for high volume goat shooting. 20260228_130915.webp
 
Any one built and using one of these? Or experience with one. Chambering and reloading with one. Thinking of 80gn copper at around 3000fps. N133?
I am thinking of re-barreling a mini Mauser to one.
K
25-45 Sharps and 6mm/.204 are wildcats, but there's a bigger and maybe better CIP-registered cartridge known as the 6x51 ATZL.
Few know of it. This is another straight neckup, but this one is of the 5.6x50 RWS Mag. Available as a calibre option in Blasers, and as a standard chambering in a micro-action from one or two custom rifle- makers. CIP drawings are copyright, so the link is here:-.

 
25-45 Sharps and 6mm/.204 are wildcats, but there's a bigger and maybe better CIP-registered cartridge known as the 6x51 ATZL.
Few know of it. This is another straight neckup, but this one is of the 5.6x50 RWS Mag. Available as a calibre option in Blasers, and as a standard chambering in a micro-action from one or two custom rifle- makers. CIP drawings are copyright, so the link is here:-.

That's a cool cartridge for sure.

You wouldn't fit it into a 223 length action though I suspect @ 2.677" max overall length.
 
Late to the party .. I have hmr/ 204/ 22lr/ 22-250/ 243/308

204 is hands down the king .. Sako varmint fluted barrel /set trigger .. NOCPIX 50r .. barely get anything else out the cabinet

204 Beats the lead ban .. low smoke barely any recoil .. quiet at night ..

Just recommissioning my 308 for non toxic
On deer ..

204 is a Lazar 32 vmax .. perfect !!
 
Late to the party .. I have hmr/ 204/ 22lr/ 22-250/ 243/308

204 is hands down the king .. Sako varmint fluted barrel /set trigger .. NOCPIX 50r .. barely get anything else out the cabinet

204 Beats the lead ban .. low smoke barely any recoil .. quiet at night ..

Just recommissioning my 308 for non toxic
On deer ..

204 is a Lazar 32 vmax .. perfect !!
204 isn't going to satisfy the OP's requirement to shoot deer, unlike the 6-204 he's interested in, though.
 
After a year or so I'm impressed. Not ideal past 350m on deer, but thoroughly adequate inside that.
This guy took a 69 grain copper through the shoulder at about 110m and fell over within 5m. Exit hole shown, it went in through the shoulder blade on the other side.
20260522_170240.webp

This was 172m and just folded.

IMG-20260518-WA0025.webp

Shot from the BBQ table in the back yard.
 
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After a year or so I'm impressed. Not ideal past 350m on deer, but thoroughly adequate inside that.
This guy took a 69 grain copper through the shoulder at about 110m and fell over within 5m. Exit hole shown, it went in through the shoulder blade on the other side.
View attachment 481141

This was 172m and just folded.

View attachment 481142

Shot from the BBQ table in the back yard.
I may have missed this - have you got a photo of a loaded round?
 
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