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Post by SwampFox JR on Sept 17, 2012 13:06:05 GMT -8
Main question is a SAFE starting load for TAC and any other powders used, for HDY 58 grain and 87 grain VMAX. SSA casing will be used. Also, the case max or trim to OAL.
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Post by Deleted on Sept 17, 2012 14:02:00 GMT -8
Main question is a SAFE starting load for TAC and any other powders used, for HDY 58 grain and 87 grain VMAX. SSA casing will be used. Also, the case max or trim to OAL. Start with a middle of the road 6mm PPC load and work up. I am shooting 31.5 gr. IMR 8208 with a 58 grain Vmax again start lower and work up. |
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Post by GLSHOOTER on Sept 17, 2012 14:11:42 GMT -8
Main question is a SAFE starting load for TAC and any other powders used, for HDY 58 grain and 87 grain VMAX. SSA casing will be used. Also, the case max or trim to OAL. Start with a middle of the road 6mm PPC load and work up. I am shooting 31.5 gr. IMR 8208 with a 58 grain Vmax again start lower and work up. I did what Ritch suggested and worked up to low end 6 BR data with no problems. I have been shooting the 87 grain Hornady HPBT out to 500 with good results over a 29.5 of TAC. I shot the VMAX at the same level with no pressure issues but the groups were not as good. The COL needed playing with and I have not gotten back to it yet. Greg |
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Post by Deleted on Sept 17, 2012 14:37:04 GMT -8
Start with a middle of the road 6mm PPC load and work up. I am shooting 31.5 gr. IMR 8208 with a 58 grain Vmax again start lower and work up. I did what Ritch suggested and worked up to low end 6 BR data with no problems. I have been shooting the 87 grain Hornady HPBT out to 500 with god results over a 29.5 of TAC. I shot the VMAX at the same level with no pressure issues but the groups were not as good. The COL needed playing with and I have not gotten back to it yet. Greg The actual chamber length is 1.6944 I would trim at least .010 shorter and pay careful attention to my overall length The over all length can also be found in any loading manual, under the 6.8 SPC II |
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Post by SwampFox JR on Sept 18, 2012 3:48:01 GMT -8
Start with a middle of the road 6mm PPC load and work up. I am shooting 31.5 gr. IMR 8208 with a 58 grain Vmax again start lower and work up. I did what Ritch suggested and worked up to low end 6 BR data with no problems. I have been shooting the 87 grain Hornady HPBT out to 500 with god results over a 29.5 of TAC. I shot the VMAX at the same level with no pressure issues but the groups were not as good. The COL needed playing with and I have not gotten back to it yet. Greg The actual chamber length is 1.6944 I would trim at least .010 shorter and pay careful attention to my overall length The over all length can also be found in any loading manual, under the 6.8 SPC II Thank you Ritch and Gregg. I wasn't going to just jump to the 6.8 specs without asking first. I found that the OAL increases when "necked down" which was not a surpise. I just did not know how the chamber dimensions compared to the 6.8 SPCII. |
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Post by GLSHOOTER on Sept 18, 2012 6:12:23 GMT -8
You will find on the neck down, in this case....pun, that the growth is not to the point that it needs trimming for an initial firing. Growth has actually been pretty minimal on mine with my first batch having eleven firings on them. Tight pockets, trimmed twice, loaded pretty stout with minimal shoulder bump.
Greg
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Post by GLSHOOTER on Oct 28, 2012 11:27:26 GMT -8
I had some spare time and found some bullets in the cabinet. I also had a new batch of 6X6.8 cases I had formed up so thought I'd get busy at the bench with some new test stuff. These are HEAVY rounds with two 95's, Bergers and Noslers, along with the sledgehammer load of a 105 Berger. The first two were to see if I could get a slightly heavier long range target load and maybe a god deer bullet out of it. The last was just a whim as this one was never designed to sling that big uber-long match bullets. This is a peak at what I ended up loading earlier last week and later I'll post one or two groups that resulted. Interesting stuff IMHO.  Greg |
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Post by riverboss on Dec 3, 2014 16:15:42 GMT -8
Which data to use 6mm bench rest or
6mm pcc both have been mentiond? I want to.load some 75 and 80 gr bullets. Which is closer to case comp between the two?
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Post by GLSHOOTER on Dec 3, 2014 18:14:01 GMT -8
Which data to use 6mm bench rest or 6mm pcc both have been mentiond? I want to.load some 75 and 80 gr bullets. Which is closer to case comp between the two? I start at a bit over MAX for 6PPC and work up to lower 6BR levels. RL15, Benchmark and 8208 are decent for those. Greg |
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