long range rifles
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has anyone built either of these in a ar platform? im interested in doing one
6x45 or 6mm/204
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midwestpredator
Active member
Lots of 6x45 out there. Not sure about 6/204, i dont think ive ever heard of one in an ar.
dtech
New member
The parent case of the .204 Ruger is the .222 Magnum, necked-down. The case is 2mm longer than the .223 Rem. case. That same case necked-up becomes a 6X47 and has been around for almost as long as I have been.
The problem is: the .204 Ruger already has issues while used on the AR-15 platform because of it's often long COL. Necking it up to 6mm and using even longer 6mm bullets would prevent you from using it with the AR-15.
Keep in mind the 6X45 has a 2mm shorter case and you are limited in magazine length already.
The problem is: the .204 Ruger already has issues while used on the AR-15 platform because of it's often long COL. Necking it up to 6mm and using even longer 6mm bullets would prevent you from using it with the AR-15.
Keep in mind the 6X45 has a 2mm shorter case and you are limited in magazine length already.
long range rifles
New member
we got a local guy that had a 6mm-204 built on a savage bolt gun.its chronoing about 200fps faster than the 6x47.it looked interesting.i do have a 223 bolt laying around somewhere.i may just do something with.