I wouldnt run an aluminium mod on a magnum unless for example you add a stainless baffle to the DPT
The 7PRC is not a massive magnum so any decent forward mounted steel mod will do the job admirably
The 7mm is to close to the 30cal rated offerings from most makers to wory about going calibre specific
Give us a bell we have a range that will suit
I personally run a Jet-z on a 300 Norma Magnum, works a charm. Considerably more powder (20gr H2O)
Solid steel mods are significantly more resilient than ANY aluminium component based ones
you'll burn through the baffles on an aluminium ones in quick style
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