I use the Win W209 Primers and the Win T7's. Now it may be me but and I know there both good but the Win W209's are a tad bit better. Now there probably the same Primer marketed in a different name (mabey not) but that's just my experiences. Although I have 7 boxes of 100 of the T 7's vs 2 of the Win W 209's. I cant fnnd the Win W209's anymore so I sticked up on the T 7's. There both good.
I also use them both with Pellets and Powder. If you have a Primer Bullet Sabot Combo and it works, who cares who's Primer it is, use it. Dont change what is'nt broke.
(BP)