Hello all, Looking for info on the above cal. I know that it is a 30-06 casing necked down to a 6mm. The gun was inherited and have no info on it. The serial starts with Z. There are no markings on the firearm from maker or year. Cal. and serial number thats it. I know I am sure to get some good info on it from this site. Thanks
6MM-06 wildcat Info needed
- Thread starter Northern diesel dude
- Start date
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
can you post pics ? Mauser action ?
Sorry not enough information to give much help as serial numbers without the make don't give usable information , a picture would be great. It is a wildcat chamber so the action could be almost anything. If its quite old then its probably a mauser, a springfield or a P14/P17 although it could be almost anything.
- Location
- Somewhere on the Hudson Bay Coast
There are literally dozens of different standard length bolt action rifles this cartridge could be chambered in. The bolt would require no modification as the '06 case has a standard head size. All that is required is a 6mm barrel chambered for that cartridge, threaded, and spun into the action.
Ballistically the 6/06 is a real fire eater having similar capacity as the 6-284 which has become a favorite of long range shooters. While a fast twist is necessary to stabilize a long bullet, this round can easily drive VLD bullets in the 105-115 gr range well over 3200 fps. If you have an itch for long range shooting, this thing might help you scratch it. The down side is that if the barrel life of the .243 Winchester is considered too short, the 6/06 will be potentially shorter, and you might be chasing the throat every thousand rounds or so.
Ballistically the 6/06 is a real fire eater having similar capacity as the 6-284 which has become a favorite of long range shooters. While a fast twist is necessary to stabilize a long bullet, this round can easily drive VLD bullets in the 105-115 gr range well over 3200 fps. If you have an itch for long range shooting, this thing might help you scratch it. The down side is that if the barrel life of the .243 Winchester is considered too short, the 6/06 will be potentially shorter, and you might be chasing the throat every thousand rounds or so.
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
As boomer mentioned, Its a custom gun.....I doubt anybody on the internet can tell you its history.....
boomer, more like 700-800 rounds and the throat erodes enough to effect accuracy.
I had one on a 700 Remington, long action. I had a friend with a reamer and he put an old HBR Hart barrel with a 1-14 twist on it for me. The barrel was taken off another rifle to switch calibres, not because it was worn out. Regardless, the whole chamber throat area was cleaned up and the bore was virtually new.
With a load of IMR4320 x 42.0gr x 75gr Barnes, the throat lasted about 700 round before accuracy was effected. By 800 rounds accuracy was unacceptable for any target or even varmint requirements.
It is an over bore capacity cartridge, IMHO. If you shoot competitively, be prepared for some expensive work to keep it operating. It also performs best with a 26in barrel.
I had one on a 700 Remington, long action. I had a friend with a reamer and he put an old HBR Hart barrel with a 1-14 twist on it for me. The barrel was taken off another rifle to switch calibres, not because it was worn out. Regardless, the whole chamber throat area was cleaned up and the bore was virtually new.
With a load of IMR4320 x 42.0gr x 75gr Barnes, the throat lasted about 700 round before accuracy was effected. By 800 rounds accuracy was unacceptable for any target or even varmint requirements.
It is an over bore capacity cartridge, IMHO. If you shoot competitively, be prepared for some expensive work to keep it operating. It also performs best with a 26in barrel.
"...Its a custom gun..." Yep. Nobody will know. A picture will likely get you the action type, but anything else would be a guess.
"...a 30-06 casing necked down to a 6mm..." If you didn't get brass too, you'd be better to use .270 or .25-06. Less reaming of the necks. There's some data on Reloader's Nest. but you'll be looking at pricey dies.
Figure out what rifling twist it has too. Oiled patch on cleaning rod. Into the chamber until it hits the rifling. Mark the rod at the chamber end and on top near the handle. Run the rod slowly through the barrel for one complete turn of the handle end mark, mark the chamber end again. Measure the distance between the marks.
"...a 30-06 casing necked down to a 6mm..." If you didn't get brass too, you'd be better to use .270 or .25-06. Less reaming of the necks. There's some data on Reloader's Nest. but you'll be looking at pricey dies.
Figure out what rifling twist it has too. Oiled patch on cleaning rod. Into the chamber until it hits the rifling. Mark the rod at the chamber end and on top near the handle. Run the rod slowly through the barrel for one complete turn of the handle end mark, mark the chamber end again. Measure the distance between the marks.
Until you can post some pics everybody is pissing in the wind. It's an overbore case but if it's a hunting rifle it may only have a few hundred rounds thru it and may have a lot of barrel life left and it could last you a lifetime. Sounds like you have no money sunk into it but until you can post some pics of the action nobody can tell you what you've got.
