I have a 6.5x284 Phoenix and it shoots awesome.

I bought my dad a Model 54 (?) also in 6.5x284 and it shoots great but the magazine sucks!!

Does not feed super reliably. My understanding is they are 30-06 mags that get a little touch up and i’ve tired 3 with not awesome results.

As well as they shoot I would not buy another, customer service was ok but they eventually just told me the mag I had was as good as it would get and they could do nothing else.