| Posted: Wed Nov 4th, 2009 12:42 AM |
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eschlottke
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Lee manual lists starting load of 38.8 and DO NOT EXCEED 43.5 180 grain jacketed bullet.
Lyman manual lists 42 grains starting and 47.5 maximum.180 grain jacketed bullet.
WHATS SAFE WITH IMR,38.8 seems light and 47.5 might be a little hot.
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| Posted: Wed Nov 4th, 2009 12:55 AM |
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Rockydog
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Cartridge please????? Got to have that info to comment. RD
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| Posted: Wed Nov 4th, 2009 01:06 AM |
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OldStuffer
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Rockydog wrote: Cartridge please????? Got to have that info to comment. RD
Absolutely. 
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| Posted: Wed Nov 4th, 2009 01:36 AM |
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fryboy
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i believe that i'd work up from lee's,like u said seems lite umm what's " might be a little hot " ? blown primers ? lolz major/minor case expansion ? 39,40,41,42 [shrugz]no matter the mystery caliber somewhere between min and max....should be accurate load....max is more up to a individual barrel and bullet as opposed to a "set" charge of propellant .... flattened primers and case head expansion are hot loads in any of my books,and indeed plz post the round's i.d.
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| Posted: Wed Nov 4th, 2009 02:42 AM |
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eschlottke
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Sorry about that,loading data is for the 30.06.
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| Posted: Wed Nov 4th, 2009 03:27 AM |
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fryboy
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i always like to check the gunpowder manufacturer when i can in this case ...they used a sierra btsp....
http://data.hodgdon.com/cartridge_load.asp
180 GR. SIE SPBT Hodgdon H4895 .308" 3.300" start 41.0 2427 38,100 CUP
max 46.0 2638 48,800 CUP
but still max of each barrel and bullet combo etc is a subjective thing , it may max out below that it may not .. i didnt use this powder in a 06 ,the bullet manufacturer may have other developed load data ( some do some dont ) keep in mind that these are baselines ,alot of other things factor in there, for instance , mil-spec brass or standard brass , depth of seating , type of action , etc etc ... i see no reason ( barring severely conflicting data from the bullet maker ) not to start at 41 and work up to what is safe in ur barrel i often find a load that i'm extremely happy with and never hit the max for a particular load/barrel,if i dont find a load i like within 3-5% of max i start on another load lolz , combo's especially for a 30-06 are endless
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| Posted: Wed Nov 4th, 2009 03:55 AM |
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Rockydog
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eschlottke, The data you asked for was with IMR powder I believe. IMR 4895 data, (also from the Hodgdon site as they now handle IMR) lists IMR 4895- 45 Gr. 2555 fps, 49500 CUP. IMR 4895 Max 48 Gr. 2680 fps 56800 CUP. It looks like the Hodgdon 4895 powder may give you equal velocities with much less pressure. I'd encourage you to go to the Hodgdon site a verify this for yourself. It's way too easy to transpose numbers etc. while typing load data in a thread. Rockydog
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| Posted: Wed Nov 4th, 2009 04:22 AM |
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fryboy
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Rockydog wrote:
It looks like the Hodgdon 4895 powder may give you equal velocities with much less pressure. I'd encourage you to go to the Hodgdon site a verify this for yourself. It's way too easy to transpose numbers etc. while typing load data in a thread. Rockydog
yup and ta make it worse i didnt catch it until u said it [blush]i stand corrected (at least the quote is right both times lolz )
180 GR. SIE SPBT "IMR 4895" .308" 3.300" 45.0 2555 49,500 PSI 48.0 2680 56,800 PSI
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| Posted: Wed Nov 4th, 2009 04:07 PM |
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Paul B
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I have mentioned elsewhere on other threads that I no longer trust Lyman data that has pressure figures in C.U.P. standards.
In fact, the powder in question was 4895 and the data was from the Lyman #44 manual circa 1967. The Lyman #47 still showed the exact same data figures, but this time said it was IMR-4895 and pressure figures were in C.U.P. It seems to me that this data should have been retested at some time or another, especially since IMR-4895 is no longer made by Du Pont but a Canadian company with IMR as the company name.
While it has been claimed that there were no changes made in making the IMR powders, there was at least one change as noted in one of the gun rags. it seems they are now using sawdust dissolved in nitric acid to make the nitrocellulose used in making the powder rather than the more expensive cotton linters used by Du Pont. I think current 4895 by IMR is faster burning due to this change. A load that was worked up in one of my rifles that was quite warm is now hot enough to blow primers in the same rifle that the load as originally worked up. The load had to be reduce TWO FULL GRAINS in order to be deemed safe in that rifle.
I've never foigured out why Du Pont got out of the powder business because with the popularity of handloading at the time they sold the powder business, they surely were not losing any money.
So IMR figured out how to make the powder less expensive to make then raised the price. How typical.  
Paul B.
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eschlottke
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load information came from lyman #45.
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Charley
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Another strong testamonial to start low and work up. Sometimes data is fudged, sometimes they just screw up, sometimes we (the handloader) screw up.
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OldStuffer
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eschlottke wrote: Lee manual lists starting load of 38.8 and DO NOT EXCEED 43.5 180 grain jacketed bullet.
Lyman manual lists 42 grains starting and 47.5 maximum.180 grain jacketed bullet.
WHATS SAFE WITH IMR,38.8 seems light and 47.5 might be a little hot.
My 1996 Nosler manual, for 180 grain bullets, lists IMR 4895, from 41 to 45 grains.
My 1997 IMR manual lists 43.5 gr, 2520 fps, 50,000psi.
My 1978 manual, lists same load.
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miestro_jerry
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The old Dupont IMR and the new IMR are not the same, the old stuff is slightly more dense. Even with the same data, you may not be able to get all of the new IMR into the case that you used to fill nicely.
Jerry
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StretchNM
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Lee is most always "on the safe side".... which is probably good. The only thing I can add is what I've loaded in 30-06 180gr.
This is the highest I've gone with this powder in this particular bullet weight (180gr). No pressure signs. I've used more 4895 in lighter .30 cal bullets.
- Nosler 180gr Partition, 47.0 IMR4895, CCI200 primer, OAL 3.330" crimped. Fine, no undue pressure. GRP: .7", DdCtr, .75" left.
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eschlottke
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Thanks for all the replys,will start at 40-41 grains and work up from there.At 69 yoa i need to be careful.
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MontanaShooter
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when you sort out and get a good load let me know, would like to know. Maybe interested in trying 180s in a bolt gun working up naturally and see how close our two loads match up in the end.
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eschlottke
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will do,i
have a good solid bolt action.mauser action, #5
match grade barrel and chamber.would like to get something in the 1/2 in. moa.
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