6 prc or 22 prc ?

[ray429]

I want to change a 6.5prc I have to either a 22prc or 6prc. Any advice on either of these from anyone?

 

[chicoredneck]

You run into diminishing returns when the case volume goes up and the bullet diameter goes down. You may not get that much more velocity out of a 22 prc vs a 22 creedmoor. The brother of the 6 prc is promoted here as the 6 UM. I believe it uses a rsaum case necked down to 6mm. It’s essentially a magnum 6mm.

I’m hesitant to set up any new cartridge at the moment due to the advent of alloy cases driving technology improvements at the moment. What we think is great performance now may be left in the dust in a few years.

 

[Taudisio]

Watched a buddy shoot out a 22cm, I couldn’t imagine the barrel life on a 22prc. By the time you find a load and get familiar with it, you may need to chase the throat. For that alone, I lean 6prc. I have a 25-6.5prc coming and I’m looking forward to it.

 

[ray429]

You run into diminishing returns when the case volume goes up and the bullet diameter goes down. You may not get that much more velocity out of a 22 prc vs a 22 creedmoor. The brother of the 6 prc is promoted here as the 6 UM. I believe it uses a rsaum case necked down to 6mm. It’s essentially a magnum 6mm.

I’m hesitant to set up any new cartridge at the moment due to the advent of alloy cases driving technology improvements at the moment. What we think is great performance now may be left in the dust in a few years.

I was only considering the two prc’s just because I’m lazy and don’t want to change my bolt nose. And I could reuse my 6.5 prc brass. So the 22prc may be out of the picture.
How does the 6prc compare to the 6um?

 

[Deere_Man]

Leave it 6.5 PRC and buy a 22 Creedmoor.