7br

[7br]

I lost my sierra loading manual in a basement flood. I remember that David Bradshaw said that the 7br with 150 gr matchkings with a charge of WW748 was a great load. If memory serves me correctly, it was 28.2gr. Can anyone confirm the charge from the manual?

[Bad Eyes]

Hello:
According to Sierra Handgun Reloading Manual, 3rd Ed:
7mm BR Remington
748 Powder
.284 150gr Matchking HPBT
Cartridge OAL 2.265”
Grs Velocity
26.8 1900
28.4 2000
30.0 2100 Most Accurate
30.8 2150 MAXIMUM LOAD
Thanks,
Rick

[nutcase]

The Sierra 6th edition no longer lists WW748 as a powder to use. I have attached the page for it.

I have had the most consistent results with 28.0 Grs of IMR4895.

7BR150.pdf

(298.43 KiB) Downloaded 143 times