7mm Mag, 185 gr Nosler RDF & Mag-pro.

[TAWS]

7mm Mag, 185 gr Nosler RDF,& Mag-pro, seated out to 3.505" just off Lands & grooves. REM 700 26" barrel, 1 in 8 twist medium weight. Powder charge (max) in Nosler # 9 manual is 69.0 gr. and I am just a tad over that. Has anyone tried anything similar to this? It does have a brake on it.
Thank you in advance.
TAWS