Need OAL/6br Mark King chamber

[chrisj]

Have a rifle with a 6mmbr chamber, which was smithed by Mark King. It is a 1/8 bbl which is set up for 105/107 bullets. I would like to try 105 Amax's and 107 Sierra's. Does anyone have an OAL as a starting point for these 2 bullets?

Thanks,

Chris

 

[jb1000br]

Chris, forgot to get you those numbers, sorry.

Base-to-Ogive with a Stoney Point 6mm comparator tool is 1.797 to lands origin, I run 1.822 B-to-O after 1100rds trying to be at 20thou in.

I loaded some 107's with my load...they seated within a couple thou of scenars and CR's

So basically the 105/6/7 with a std. Wilson stem will seat within +-0.002" of each other.

I'll get you the 107 OAL...

JB

 

[jb1000br]

Chris, with the wilson seater at the same setting:


Boolet...Base to Ogive with SP.......OAL
107SMK:...........1.820"...................2.388"
105sc:............1.822"...................2.380"

Original land origin OAL: 2.365"

HTH,
JB