6BRX 150FB

[comagutsa]

finally got my Krieger 5R barrel with a EC tuner back off gunsmith
i used my new 6BRX reamer with 150FB
i loaded up some 105gr hybrids and 107gr SMK at 010 jump
the cases have been hydroformed and ready to shoot
105gr hybrid

107gr SMK

 

[swimster]

Looks good. Were your necks turned before hydroforming.

 

[BW]

That 150fb looks pretty good. My BRX reamer is 120fb and I kinda wish I'd gone longer. I've been shooting 105 hybrids and my last couple barrels have liked a lot of jump putting that bullet well into the neck/shoulder junction. Luckily it hasn't been a problem as I've yet to run into the doughnut problem with the BRX. Neck turning virgin br brass before fire forming like a see you did seems to help eliminate doughnuts from forming, at least in my experience.

 

[JEFFPPC]

You need to buy a throater so you can seat the of the end of the bullet shank half way up the neck to start.This will give you room to go either way. I have been through about 20 BRX barrels. Only jumped bullets in 2. Currently red gun is jammed .015, blue gun is jumped .017. Shooting 107 SMK.

 

[comagutsa]

Looks good. Were your necks turned before hydroforming.

yeah mate they were, you can see halfway down the shoulder were the 6BR neck finished, i run a 270 neck so i turn down to a loaded round of 267
cheers

 

[swimster]

I,m getting ready to fire form some 22Brx cases. I'll give that a try. Thanks for the reply.

 

[Dusty Stevens]

That sure doesnt look like .150fb to me. I have a .123fb reamer and a 107 pressure ring is halfway out the neck. I couldnt imagine if jgs would have made mine .150 with the same guy measuring it- the bullet may not even stay in the neck

 

[swd]

My BRX reamer has .140fb and 107’s seat just shy of half way down the neck.

 

[comagutsa]

That sure doesnt look like .150fb to me. I have a .123fb reamer and a 107 pressure ring is halfway out the neck. I couldnt imagine if jgs would have made mine .150 with the same guy measuring it- the bullet may not even stay in the neck

i started at 120 FB then went to 140FB as my gunsmith made throat longer on his old Dave Kiff reamer, but this i went with 150FB on my reamer as i needed just a bit more .. i will check after i've run the barrel in