6XC, H4350, 107 gr. SMK, Peterson brass
- Thread starter Baer45
- Start date
I shoot 40 grains in both of mine. Rock barrel on one and Krieger on the other, both 8 twist and both extremely accurate. Using formed Win 22/250 in the Rock and Tubb/Norma in the other with 450 primers. Reamer was .274nk and .104FB. Also both at 10 off. Use them for yotes.
Thanks for the hard data. Sierra shows pressure at 39.1 but that was lower then other comments I had read. I’m not looking to push pressure for velocity, just accurate to 700...I’ll start low and work up. 105 and 107s are two entirely different profiles...I shoot Sierra because they are cheaper and consistent and go to Berger’s or Tubb 115s for lr...
That sounds more like what I had mine or was guessing my max would be....thanks
I’ve shot 38-39grs of H4350 under a 107 using Norma brass for years. Great accuracy and velocity without killing the brass. Shot more cleans at 600 than I can count.
You’ll find Petersen brass is even better than Norma.
Avoid Alpha Munitionsbrass at all costs. It is dangerous to use.
You’ll find Petersen brass is even better than Norma.
Avoid Alpha Munitionsbrass at all costs. It is dangerous to use.
I use 39gr h4350
Kurz
Silver $$ Contributor
This really is an irresponsible statement to make without absolute back up using data and lab work. Opinions simply don't count.
AckleymanII
Gold $$ Contributor
aa4350 is a great powder in the 6 XC, and start at 39g with any of the 4350's using the 107's.
I shot 900 rounds on thirty Lapua palma cases, still using 13 of them. I pushed the limits with R#17, and primer pockets opened up after 4 firings. Remington 7 1/2's proved to be much better than cci 450.
IN a 31" barrel, I had nodes with 107's in a 6 groove, .237 bore at 3050,3150,and one using R#17 with Rem 7 1/2 at 3250 with fantastic accuracy. Node with H4350 was tiny bug holes at 3150, 39.5g...just for illustration.
Peterson brass test will be next.
I shot 900 rounds on thirty Lapua palma cases, still using 13 of them. I pushed the limits with R#17, and primer pockets opened up after 4 firings. Remington 7 1/2's proved to be much better than cci 450.
IN a 31" barrel, I had nodes with 107's in a 6 groove, .237 bore at 3050,3150,and one using R#17 with Rem 7 1/2 at 3250 with fantastic accuracy. Node with H4350 was tiny bug holes at 3150, 39.5g...just for illustration.
Peterson brass test will be next.
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It’s a free country and my opinion, based on my experience, is as valid as anyone else’s. You’re free to ignore it, if you like.
I’m even willing to use my real, full name on here.
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Kurz
Silver $$ Contributor
Had a 'duh' moment on above post. Was thinking of my 6x47L load, I use 450's with it. My XC load above includes a BR-2 primer. Sorry for the goof up!!!
urbanrifleman
Site $$ Sponsor
Tubb is using Peterson brass with the small rifle primer with Rem 7 1/2
accuracyman
Silver $$ Contributor
My rifle loves H4350 at 39.7g in Norma Brass with a .010" jump.
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