FG/MD54

Again read and research badbowbender2 explanation of the gas pressures in in the various primers.

If you are talking regular Fed 209's they do produce less pressure than the a CCI-209M - no argument there. But if you are talking about Fed 209A's you better check with the military - they are designed and built to be the strongest gas producing primer on the market. The need to be to fulfill the military specifications that run from way below zero in temp to 100+ degrees in other theaters...

The Win W209 are not even in the class of the M or A - they were never designed to be - but if your plug is correct that is all you need...

Another thing you might consider call Cecil @ PR bullets and discuss with him the effects of hot 209 primers on the results you might see @ the target.. you would not believe me anyway.