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pedab
04-06-2011, 11:13 AM
hello im looking for info on 6xc loads. i currently shoot 38.5gr. h4350 behind 105gr bergers. and 38gr h4350 behind 90gr bergers. gun shoots pretty well but just looking for better. have 1 in8 barrel on bat action in mcmillen a5 stock.

Bullen
04-06-2011, 11:47 AM
I used Vihtavuori 150 36.0 grains behind 105 gr. Berger (molycoated.)
That in a 1 in8 Krieger barrel.....26 inch and heavy one :-)
Sako TRG 22.
The gun shoots amazingly at 300 yards...

pedab
04-06-2011, 10:32 PM
i have been using viht n-140 and n-160 in a 6mm rem with good results but wasnt sure were to start with other powders in the 6xc. most people shoot across course with 6xc at least what i have read here. i shoot 100 300 500 ground hog shoots. need tighter group at 100yd or might say a more reliable group at 100.

Asa Yam
04-07-2011, 11:27 AM
most people shoot across course with 6xc at least what i have read here. i shoot 100 300 500 ground hog shoots. need tighter group at 100yd or might say a more reliable group at 100.
Don't assume Across-the-Course shooting has lesser requirements in either accuracy or precision. (See http://celebrating200years.noaa.gov/magazine/tct/accuracy_vs_precision.html
for a visual of both.) When firing from position, it is a given there is more "noise" affecting both. Still, 6xc is competetive. For example, in 300 Meter International shooting (different form of position shooting), 6xc is making inroads - it is the cartridge for the Norwegean national team, and possibly another (Sweden?), and has won at least two team championships. Significance? Since the 1970s, the dominant cartridge in 300 Meter has been the 6BR.

Having said the above, here's a link to the load data used by David Tubb, developed using REMINGTON brass, Sierra bullets (moly coated), and a Schneider polygonal rifled barrel. (Brass, bullets (and coatings) and barrels are noted, as all have an effect on pressure.) http://www.davidtubb.com/tcom_images/6xc_images/6xc_dies_six.html
NOTE: Powders of choice are N150/Varget and slower, with maximum velocities achieved using H-4350 or N-160.

From experience, 70 grain bullets can safely be fired using charges intended for 107s. Whether they're precise enough for your application is for you to decide.

As a thought, you could always buy a few boxes of Norma 6XC ammo, and use them for benchmark loads. IIRC, they may be loaded using Norma 203B powder (similar to Reloder-15, if not the same powder.) Factory ammo which shoots 60 shot groups of just over 2" @ 300 meters can't be that bad.

pedab
04-07-2011, 10:43 PM
i am not assuming anything about across the course shooting because i know nothing about it . when i acquired this rifle mr tubb was using h4350 exclusively and that what he recommended to me when i orderd brass and dies. i was just wondering if anyone was other powders and what their success or failures were. my rifle does pretty good at 300 & 500yds with h4350 just looking for other options for 100yds. i will give the 70gr bullets a try and see what results i get from them. thanks for advice.

alinwa
04-07-2011, 11:23 PM
Well, a lot of folks are convinced that RL-17 is better than H4350. Start at 36gr and work up, see what you think.

al