Thread: Fireforming New Brass

Originally Posted by Bos

Resized .270 into a new 6.5 06 chamber

Greetings Bos,
From your above reply I assume that you have the standard 6.5-06 chamber rather than an improved version. If this is the case then sizing the neck to to 6.5 mm and trimming to the correct length is all that is needed. You can do this in a FL die, just make sure you don't set the shoulder back. Most of the advice above relates to forming to an improved chamber. You mention a new 6.5-06 chamber so I assume this has been cut by a gunsmith and hopefully is close to minimum and should match the .270 case reasonably well other than the neck. I have formed 6.5-06 cases from both .25-06 and .270 cases. .25-06 is easier as they don't need trimming but a 6.5-06 chambered in a loose .25-06 would be dangerous. A 6.5-06 chambered in a .270 is not dangerous but velocity will be low and accuracy non existent. A safer alternative.
You may also be looking to fire form your cases to fit your chamber. I suggest you may wish to do a little testing to see if this provides any measurable improvement before burning up to many components, not to mention the barrel.
Regards Grandpamac.