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Old Yesterday, 03:59 PM   #26
reynolds357
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Quote:
Originally Posted by hounddawg View Post
Good question, it won't show for me now either. That data in post 19 was cut and paste. I thought I may have confused it with dasher or other 6mm data but dasher is way higher and nothing else matches. I have no idea why it shows sometimes and then does not. I am starting to really mistrust the Hogdon load data now. I am dropping down to 27.0 - 28.0 and if the problem goes away I will never use the Hogdon load data site again. I just placed an order for a Berger load manual, something I should have done long ago
Hodgdon shows 29gr for 6BRM with 107 gr bullet. By their data, you are definitely good. That load was maxed due to cimpression, not pressure. So, in the Norma 29 would be light. My Berger manual is at my office. I will let you know what it says tomorrow. I honestly think virgon brass will cure your problem. Seen it happen too many times. If it dies cure your priblem, the next step is where it gets aggravating.

Last edited by reynolds357; Yesterday at 04:04 PM.
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Old Yesterday, 06:23 PM   #27
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Well, as the Sierra manual says a load manual paints a picture of what the load did in the test gun, and that definitely does not mean its a safe load in your gun. Sierra tends to be more conservative, but they just invested recently in building their own pressure test lab and they're apparently following Hornady's lead in adopting Doppler radar. So all this stuff may change again. We'll have to wait and see.

I actually had looked at the Hodgdon load before looking at it in the new Sierra #6 and knew the original load was only about a grain over. My reasoning was that if one place found the limit lower, that might be the case for Hounddawg's gun so let's see how the cases fare with a more substantially reduced load. There is no way to know how much you'll have to reduce a load in a particular gun to get free of indicators until you do it.
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Old Yesterday, 06:39 PM   #28
hounddawg
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thanks Reynolds, I sent a email to Berger and their manual on the way. Hopefully I can get to the range Tuesday and see how 27 - 28.0 works for me
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Old Yesterday, 06:52 PM   #29
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Hounddawg,

I've looked through both Hodgdon's Pistol and Rifle cartridge lists twice and didn't pick up an entry for 6 BR Norma there. What cartridges did you find it next to?

The Sierra listing is for 6 mm BR Norma, BTW. They explain the relationship to the Remington version, but don't list it separately.
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Old Yesterday, 07:18 PM   #30
hounddawg
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figured out that I must have screwed up, embarrassed to admit it. I must have been looking at the 6.5 BR data on the Hogdon data site. The pet loads over on the 6BR website must have been for shorter barrels. Guess I am lucky that the only thing hurt was my ego. Going to redo the load workup and maxxing it out at 28.5

Thanks for the help guys, sorry to put you through all this BS for my mistake
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Old Yesterday, 10:03 PM   #31
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It happens. You get a little weary and the brain crosses up. You'll be wicked alert to data for a while now, though.
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Old Yesterday, 10:42 PM   #32
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houdawg,I'll toss it out there again.

I get it that you are focused on the accuracy you got with Varget. That matters.

I picture the powder burn rate and the bullet acceleration being in a race going down the barrel.

If the powder burn is outrunning the bullet,pressure spikes.

Another bad analogy,would be a dragster's engine power curve versus gearing.

If you have a 7000 rpm engine,it might be that 3,00 rear end gears are too tall,but something like a 5.36 might be too deep.

There is a balance to achieve

If I was using 105 gr bullets in a 6mm,if I was loading up around max with a mid range burn powder like Varget, I'd sure look at shifting gears to a slower powder. Especially since you have 29 in of barrel to burn it in. I'd at least experiment with a 4350. Just to see. Maybe RE-19.

Good luck!

If someone had Quickload(I don't) it will give you a percentage of powder burned in the bore.That might be interesting to play with. Given your 29 in bbl,I wonder what the %of Varget burned would be if you plugged in a parameter of 24 in bbl. What if its 99 or 100 % burn at 24 in?

Last edited by HiBC; Yesterday at 10:48 PM.
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Old Yesterday, 11:55 PM   #33
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Oh, it will do more than that. it will rank all the powders in its database by velocity performance. I don't know Hounddawgs actual as-fired case water overflow capacity or which 105 grain Berger he is using, but with the VLD the program thinks Reloader 17 compressed 105% is the velocity king, followed by CFE223 for an uncompressed load (93.6%). It shows they burn 100% and 99%, respectively, in the long barrel. This is running at top pressure.
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Old Today, 07:31 AM   #34
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HiBC, appreciate your advice and no disrespect meant but I have done a ton of research on this little cartridge and no one uses H4350. Varget,and H4895, seem to be the top choices with a few using Norma 203B and various VV 540, N140 and N150

I might give the 4350 a chance once I get this reduced Varget load tested if the Berger manual give me a starting load. I use H4350 in my 6 CM and Rem 260 and it shoots great. I just have not found anyone on any forum that has had luck with it in 6BR. Neither the Hogdon or the Sierra 4th list any H4350 loads and Hornady only has data up to the 80 gn bullets.
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