300 win/200smk/rl25 velocities???

[30-06 boy]

was out shooting this morning with my new savage 110fp in 300 win mag.testing 200smk,178amax,180sgkfor bullets and rl22,rl25,imr7828,h1000 for powders.basicly getting vigin brass to fit the chamber and see what for velocities the rifle will do.all the loads i shot of the 180 grain bullets were in the3050/3130 range.now comes the 200smk.h1000 with 80grains-2980fps,rl22 with 74grains-3030fps,RL25 with78 grains 3098FPS.i have a cheap chrony chronograph.is my chrony messed up(but the 180 bullets were at 3000-3100fps)?are not these 200smk loads a bit fast?primers were a little cratered,no heavy bolt lift,etc.are you guys getting 200smks or 200ab this fast?they did shoot moa at 300 yards just throwing them together.

[RockZ]

I'm shooting 200SMK's with 75.0 grains of IMR 7828. I'm getting 2950fps. No pressure signs at all.
I got the best groups in the 2850-2900fps range.
I'm shooting a Savage 112BVSS .300win.