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6BR with light bullets.

jamesdmock

jamesdmock

After renewing my acquaintance with the 6 BR, I thought I would shoot the new brass with some light weight bullets to fireform the brass. The barrel is a 5 R Bartlein in 8 twist and I loaded some 65gr BT from the late Del Bishop that I found in the back of my gun cabinet. I loaded 29.3 gr. of T 8208 with CCI 400 primers and was shocked when this combo yielded 3-shot groups in the ones at 100 yards. The Bishop bullets are in the unattainable category, but I'll bet that Bart's 65 SMBT will work just as well.
 
jamesdmock said:
After renewing my acquaintance with the 6 BR, I thought I would shoot the new brass with some light weight bullets to fireform the brass. The barrel is a 5 R Bartlein in 8 twist and I loaded some 65gr BT from the late Del Bishop that I found in the back of my gun cabinet. I loaded 29.3 gr. of T 8208 with CCI 400 primers and was shocked when this combo yielded 3-shot groups in the ones at 100 yards. The Bishop bullets are in the unattainable category, but I'll bet that Bart's 65 SMBT will work just as well.
Click to expand...
I shot this target while fire forming new brass.20210502_192838.jpg
I'm running low on heavy bullets. I have some Barts 68 gr Ultras to try. The rifle is has an 8 twist barrel.
PopCharlie
 
jamesdmock said:
After renewing my acquaintance with the 6 BR, I thought I would shoot the new brass with some light weight bullets to fireform the brass. The barrel is a 5 R Bartlein in 8 twist and I loaded some 65gr BT from the late Del Bishop that I found in the back of my gun cabinet. I loaded 29.3 gr. of T 8208 with CCI 400 primers and was shocked when this combo yielded 3-shot groups in the ones at 100 yards. The Bishop bullets are in the unattainable category, but I'll bet that Bart's 65 SMBT will work just as well.
Click to expand...
Very nice, what is the free bore. i have a lot of light i would like to shoot on the P Dogs thanks Charles
 
Light weight bullets? I start with the lightest bullets I can find, usually 50s and go heavier as the throat wears. I think I'am up to 60s now. Chamber cut with ZERO freebore just for the light bullets. Bug holes. ;)
 
Last edited:
jamesdmock said:
After renewing my acquaintance with the 6 BR, I thought I would shoot the new brass with some light weight bullets to fireform the brass. The barrel is a 5 R Bartlein in 8 twist and I loaded some 65gr BT from the late Del Bishop that I found in the back of my gun cabinet. I loaded 29.3 gr. of T 8208 with CCI 400 primers and was shocked when this combo yielded 3-shot groups in the ones at 100 yards. The Bishop bullets are in the unattainable category, but I'll bet that Bart's 65 SMBT will work just as well.
Click to expand...

My go-to is the Berger Column bullet (64ish grain) over 31gns of Varget. I recently tried some Bart's 66FB bullets, and with very minor charge tweaks found them to shoot just as well, if not a tiny bit better. Either of these are generally sub .25" inch at 100 yds, very often low .1's with the rare sub tenth.

Edit to add: Krieger 13.5 twist, 24" barrel.
 
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