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Post by The Wolverine on Jul 29, 2012 19:10:35 GMT -8
Very nice Paul. Change out your scope so we can see what it will really do. I need to, all my high power scopes are on other guns, I wish I would have got a vortex 6.5x20 when they were on sale. Uh oh Greg, looks like I own page 4 ;D
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Post by GLSHOOTER on Jul 30, 2012 9:02:25 GMT -8
Very nice Paul. Change out your scope so we can see what it will really do. I need to, all my high power scopes are on other guns, I wish I would have got a vortex 6.5x20 when they were on sale. Uh oh Greg, looks like I own page 4 ;D Nice first group. Great velocity with the big bullet also. I got my biggest one one a trade for a 45 ACP barrel and I'm glad I have it to test with. Greg PS: You won the page because someone always has to nibble at the salad before they get to the real meat and potatoes!!
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Post by The Wolverine on Jul 30, 2012 15:12:44 GMT -8
Shot a few 58gr V-max this morning between rain drops, speed was a touch lower than I expected out of my 20" 6x68, but there is still room in the case, and I had no signs of pressure. Accuracy was awesome especially with a 4 power scope. Having the bigger circle to center the one mil dot in helped. Coyote are going to die.
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Post by Deleted on Jul 30, 2012 15:27:54 GMT -8
Good shooting Paul. Try some Benchmark and CFE223. Let us know how it shoots.
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Post by GLSHOOTER on Jul 30, 2012 15:55:01 GMT -8
Man, you missed the WHOLE target dot!!!! Greg PS: That is a keeper!!
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Post by GLSHOOTER on Aug 4, 2012 15:29:39 GMT -8
A quick reloading quirk that I knew about and went out to see if it was true. Here we have a pair of R-P 6.8 cases and a pair of Silver State 6.8 cases reformed into the 6X68. Same powder charge, 32.5 grains CFE 223, and a 75 grain VMAX at 2.255. R-P had Large Rifle Federal primers. SS has small rifle Remington 7 /12 primers Rounds shot at 105 temperature out of my 6X68 24" tube. I shot the R-P at a practice match so I could make up a Hornady case gauge so did not have a chronograph. Ritch reports 100 FPS + or - HIGHER velocities with the R-P cases. This may be due to the large primer or smaller internal volume or both. The R-P holds about 0.8 cc less H2O than the SS. This equates to about 2%. Ritch's reported velocity increases come up to around 3% roughly. Given a virgin case is smallest before it is fired the first time you would see a lower case volume and an increase of the pressures when when fired for the first time. The flattening of the R-P primers would make me stop at that load level but with the SS/Remington pairing I would possibly go ahead on and look for more speed. You can obviously get some higher velocities for a given powder in the R-P's but I believe you will have lose pockets quite a bit sooner. I did seat new primers in the R-P's and they were very slightly looser than on the initial loading. The SS cases in this photo have been shot NINE times and the pockets are still nice and tight and they have not been fed soft ball loads either. Just a little view of what I do in my copious spare time. Greg
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Post by GLSHOOTER on Aug 12, 2012 16:47:48 GMT -8
Just a quick note from the real world application. I shot a 500 yard F-Class today with the 6X68 using 75 grain VMAX at 3330. Conditions were 90 to 106. Calm to start and switching variables at the end. The brass was on its' TENTH firing. The bullets went down range and I turned in the best score I have posted on the matches so far on this mid-range match. I'm pretty happy generally but will start looking for a higher BC bullet. The 75's shoot fine but I want something to shoot through the conditions. I need all the ballistic crutch I can get. I will probably try the Berger 95's but I hate to tun that $$'s loose for those great pills. Probably penny wise and pound foolish but I know when I go to 1000 yards I will have no choice but to buy the points ad that means buying the bullets!! Greg
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Post by Brandon Sneed on Sept 27, 2012 22:46:28 GMT -8
For future reference, the Large primer 6.8 cases have always shown pressure signs BEFORE the SSA in the same loads, with the same powders, so I'm honestly not surprised that these showed up in the 6-6.8.
Good job though point it out to those that are not familiar with the 6.8 parent case.
I wish Remington would get on board finally and stop producing the large primer brass anyway.
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Post by GLSHOOTER on Nov 2, 2012 17:48:03 GMT -8
It has been a bit since I've posted anything on the 6X6.8. I have been doing way to much shooting and not enough posting!! (Don'tcha hate it??) I shot some 95's the other day looking for a better way to handle the F-Class mis-range targets and came up with some decent ones. I shot the 95 Noslers BT's and the Berger VLD target bullets. I wanted to try the Noslers on a whim and the results were promising but I need to revisit them at a bit lower charge weight. They have a bigger bearing surface than the Bergers and the pressures were a bit too radical for daily consumption. They do make a hunting 95 Berger that might be fun to try also. Her you go and while they aren't quite penny worthy they would do for a nickle. Velocities weren't too shabby and that 8208 just keeps pumping them in. Greg
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Post by 6x6.8 boat on Mar 18, 2015 10:18:01 GMT -8
I just ordered my first BHW 6x6.8 barrel. I ordered a 20'' 1 in 8 twist do you think this will be alright, or should I try to change it and to what twist do you recommend. I'm interested in shooting long distance
Thanks,
Dan
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Post by GLSHOOTER on Mar 18, 2015 11:54:58 GMT -8
I just ordered my first BHW 6x6.8 barrel. I ordered a 20'' 1 in 8 twist do you think this will be alright, or should I try to change it and to what twist do you recommend. I'm interested in shooting long distance
Thanks,
DanMine is a 1:9 but we didn't have an 1:8 at the time. It shoots well at 500. The 1:8 should be the ticket for long range and will shoot the lighter ones well also. Greg
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Post by guncollector on Aug 9, 2015 20:46:13 GMT -8
I got my 6X6.8 barrel 2 years ago. It is 24 inches and has a 1 in 9 twist. I finally got the upper built. A few minor things got in the way like a divorce, moving from Washington to California and then to Arizona but I am finally settled in a very gun friendly state. I am ready to start testing loads. I have copied all the loads listed here but they were all posted about 2 years ago. I am wondering if anybody has done additional load development and would be willing to share their data. Any help will be greatly appreciated.
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Post by GLSHOOTER on Aug 10, 2015 5:57:44 GMT -8
I got my 6X6.8 barrel 2 years ago. It is 24 inches and has a 1 in 9 twist. I finally got the upper built. A few minor things got in the way like a divorce, moving from Washington to California and then to Arizona but I am finally settled in a very gun friendly state. I am ready to start testing loads. I have copied all the loads listed here but they were all posted about 2 years ago. I am wondering if anybody has done additional load development and would be willing to share their data. Any help will be greatly appreciated. I'm sue there are some out there. I haven't done a lot of new things as I'm playing with a few of its brothers. I'll look through my notes for "new " stuff but we have pretty much establish what runs zoot capri in it. BTW where in AZ? I'm up in Phoenix so spare time might allow a meet up and trip to the deert. PM me. Greg
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Post by bobatl on Aug 13, 2015 14:37:55 GMT -8
Shot a few 58gr V-max .... out of my 20" 6x68, but there is still room in the case, and I had no signs of pressure.
Just loaded some 58gr Vmax over 31.0 gr 8208 in new FL sized Hornady brass. Started with 31.5 but powder came well above the shoulder into the throat.Even the 31.0gr of 8208 had a little crunch. Loading to 2.270 COL now, could maybe go a tad longer.. Just wanted to duplicate the factory round to have a baseline for FPS.So what case is giving you more room at 31.0 ? Mine are new brass, maybe once fire formed it will grow some ??
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Post by Deleted on Aug 14, 2015 2:37:59 GMT -8
Shot a few 58gr V-max .... out of my 20" 6x68, but there is still room in the case, and I had no signs of pressure.
Just loaded some 58gr Vmax over 31.0 gr 8208 in new FL sized Hornady brass. Started with 31.5 but powder came well above the shoulder into the throat.Even the 31.0gr of 8208 had a little crunch. Loading to 2.270 COL now, could maybe go a tad longer.. Just wanted to duplicate the factory round to have a baseline for FPS.So what case is giving you more room at 31.0 ? Mine are new brass, maybe once fire formed it will grow some ?? The brass will gain some capacity after it's been fired. The 31.5 grain load is what we are all shooting for the most part. It's a compressed load, but as far as I know no one has ever had a problem with it. The load work was done with SSA brass. That would be Pre Nosler. That is also the same brass the factory ammo is loaded with.
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