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January 20, 2012, 07:20 PM | #1 |
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Need a Quickload sanity check on what I think is an overload
I was perusing some old 30-30 load data and I ran across a load that I suspect is too close or slightly over the 42K psi for a 30-30 winchester. So if somebody would run this through Quickload, I would appreciate it.
Powder is H335 Primer is WLR Case is Remington Brass Bullet is Speer 130gr Flat Point #2007 Powder charge is 39gr. COL = 2.550 20" barrel. |
January 20, 2012, 08:19 PM | #2 |
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Just a tiny bit over pressure....
Where did the load come from? |
January 21, 2012, 12:31 AM | #3 |
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Well I won't mention the author except to say that he is an old-timer who had quite a following a long while ago. Thank you for the sanity check.
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January 21, 2012, 01:57 PM | #4 |
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DO you believe " quickload " ?
BEWARE.... think... |
January 21, 2012, 02:08 PM | #5 |
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I do
I do Except when I don't... And I know "pretty much" when to question it. ** (A chronograph is essential) But when it tells me 60ksi in a bottleneck rifle case, though, that's mostly outside my doubt range. **(My wife quotes me this mantra as well -- and claims not to need the chronograph) |
January 21, 2012, 02:41 PM | #6 | |
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Quote:
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Nobody plans to screw up their lives... ...they just don't plan not to. -Andy Stanley |
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January 21, 2012, 03:59 PM | #7 |
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H335
Hodgdon # 27 Data Manual show 34grs to be a max load 34,700 CUP with a 130gr projectile, Hodgdon # 25 DATA Manual shows a heavier charge that I will not list. You have to remember that older lots of powder varied widely, when you open a new container/different lot of powder you go back to the starting load and work up if signs permit. It sure as heck doesn't mean your Great Uncle's receipe of 50 years ago of a specific powder is the same as the powder today!! I AM REMINDER THAT IN THE EARLY 80'S I RAN ACROSS A SUPER HOT LOT OF H4895, THE UNSUPPORTED PART OF THE CASE WAS BALLONING NEARLY TO THE POINT OF A RUPTURE!! I quickly discontinued shooting that lot of powder and it was burned. The cases were Norma, caliber a 30/06, rifle a Winchester Model 70, the brass was purchased at J.C. Penny of all places. Always use a trusted source for your loading information. William
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January 21, 2012, 07:13 PM | #8 | |
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Quote:
In a way, by trying to limit their liability by publishing wimpy data, Hodgdon is actually encouraging blind misuse of their product. I am not condoning hot-rodding at all, but I need to point out that once bad load data starts making it's rounds on the Internet, the only good way to stop it is to provide good data in it's place. Hodgdon, by "lawyering up", is not providing good data. |
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January 21, 2012, 09:05 PM | #9 |
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The lever isn't one of the stronger actions available to the hunter nor is the case particularly strong, when you couple those two facts together they make a pretty good case for being cautious. Another factor to throw in the equation is the age of the firearm and how well it has been maintained. Last factor is the fellow asking the question, what does he know, his skill level, how well is he able to interpret and understand the information he has assembled. I know I will be safe, nor will I do anthing to put anyone else at risk. I can state I've never pierced a primer, nor had a case to rupture nor blown a primer, my point is if you stay with current published data from a trusted source you won't have any of the above happen either!! William
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January 21, 2012, 10:23 PM | #10 |
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CUP ≠ PSI
In fact the common piezoelectric Pressure corresponding to a Copper Units reading is near invariably higher. Case in point is the 30-30 where there's about a 4,000 unit difference between the two. So that 34,700CUP reading translates to about 38,500 psi. * ** * SAMMI Std for 30-30 is 38CUP/42ksi (pages 15 & 20) and also here: http://www.shootingsoftware.com/ftp/psicuparticle2.pdf ** Incidentally, Quickload predicts 38,400psi/2,490fps out of a 24" barrel for that 130SpeerFP over H335/34.0gr OAL=2.540" |
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