I'm looking to load the 225 TTSX in my 338 WM using H4350. When I talked to Barnes they recommended loading .050 off the lands. I used a Stoney OAL gauge to measure 3.473. Minus the.050 that makes 3.423, but my manuals say the maximum COAL for the 338 WM is 3.340. Any recommendations on what OAL I should use.