My 6BR load data

[tiny68]

Recently someone about load data for a 6BR with the 107 SMK and speeds obtainable. I will share these but read the disclaimer below.

DISCLAIMER - These loads where safe in my rifle. You at your own risk!

I didn't include all the groups. You can see from the data this barrel really likes the 107 SMK above all other bullets I tried with these powders. Yes 3000 is reachable with RE-15. I still had a little case capacity and the primers looked fine.

I have had some very good success with RE-17 and Berger 105s in a previous 6BR. I will go back to it again as time allows to compare. A couple of the groups where cold bore immediately after cleaning. They are marked on the pics, but I calculated the groups to include all shoots. Those two groups would have likely tighten up with a fowler shoot.

All 100 yd groups shot off a Cowan rest and rear bag. Winds at 10-2 variable at 5-10 mphs with the occasional gust. I will be fine tuning the 107 SMK and RE-15 a little more. These load were all shot with the bullets 0.005 into the lands using unfired brass.

The 80 Bergers also looked promising with N135. These loads were a little to hot and should be backed down a little. Flat primers

First experience with Wolf primers. Wow!!! First time to have extreme spreads in the single digits. I think many of the others would have been closer once the brass was fire-formed.

I tried to increase the resolution for the Excel table I save as a pdf then re-saved as a jpg. Not very good. Sorry.


Luck, tiny

Edit - added pdf file of load data for clearly image.

 

[varminater]

Tiny, Thanks for sharing the info. Are those Wolf primers that you are using a magnum primer, and do you like them better than the CCI 450's? Do you like the Reloder 15 better than the varget with the heavy bullets? Just curious. Bill

 

[tiny68]

Yes these are Wolf small rifle mag primers. CCI 450 seem too soft to me and I always get a lot of primer 'flow'. I don't use them in high pressure round. Personal thing. My initial testing indicates I can get better groups with lower standard deviations and at over 100 fps faster with RE-15. Seems like a no brainier in my gun.

Next time I will try RE-15 with the 95 Berger VLDs and RE-17 with the 107 SMK.

tiny

 

[niceone]

pm sent ... oh i see you seat into lands all the best ..mark

 

[Steve Blair]

I also get very low ES/SD with Wolf primers. My 6BR loads use the KVB-5.56M with everything. Wonderful consistency, hard cup and low price. No complaints.