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Old January 18, 2011, 11:00 AM   #1
mapsjanhere
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Speer manual

Does anyone have a Speer manual and can check for 9.3x64 Brenneke loads? I found 9.3 270gr Speer SP bullets locally, but Nosler (the only manufacturer I found listing this cartridge) doesn't have a 270 gr. I found loads online, 62 - 68 gr RL 15, but it would be nice to actually have those confirmed by a manual.
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Old January 18, 2011, 11:36 AM   #2
jimbob86
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Speer #13 lists a 9.3x62, but not a 9.3x64....

Powders for a 270 grain Semi-spitzer include H414, WIN 760, IMR 4350..... no RL 15.

Nosler's 5th Ed. also lists a 9.3x62 ....., but no 270 gr bullet. Their 286gr Partition lists RL 15 with a start load of 54.5, Do Not Exceed 58.5.....

Lee 2nd Ed. lists the 9.3x62 but no RL 15 270gr bullet loads.....
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Old January 18, 2011, 12:01 PM   #3
bossman
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All I see is a 9.3x62mm 270 sp
min max

H414* 56gr 60 gr
760* 56 60
imr 4350 60 64
imr 4064 54 58
imr 4895 52 56
imr 4831 60 64
h380* 55 59
748* 50 54

Out of speers I hope this helps. *shows magnum primer.
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Old January 18, 2011, 12:04 PM   #4
mapsjanhere
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Thanks for saving me the purchase of the Speer manual due to "it doesn't have it either"
The 9.3x64 is quite a bit hotter than the 9.3x62, depending on load up to 300 ft/s; it's basically a 375 H&H performance wise (just fits into a standard Mauser action). For identical bullets Nosler has about 15% more powder in the x64. Their max loads for 250 gr is 67 gr RL 15, for 286 gr 66 gr RL 15. So 60 - 62 grains should be a safe starting load for the 270.
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Old January 18, 2011, 12:07 PM   #5
bossman
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ok
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Old January 18, 2011, 12:18 PM   #6
mehavey
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Quickload rates the 9.3x64 Brenneke as a 64,000 psi cartriddge
in modern rifles in good condition (YMMV).

When going to its propellant Load Table option, QL drops that
to ~55,870 psi and tells me:

9.3x64 Brenneke
Case Volume: 88.0cc
COAL: 3.370"
Bullet: .366"dia, 270gr, Speer SP (#2459)
Powder: RL-15 / 66.6gr (94% case fill)
Pressure: 55,871 psi
Velocity: 2,616 fps (24")

(BTW: RL-15/62g is an 85% case fill --> 46,000psi/2,460fps -- reasonable min load)

YMMV again, of course, but RL-15/68.0gr takes pressure up to 59,400psi.
Caveat Reloader
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Old January 18, 2011, 12:38 PM   #7
GeauxTide
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270 Speer Semi-spitzer IMR IMR-4350 76.0 2,785
CCI 200
270 Speer Semi-spitzer IMR IMR-4350 78.0 2,875
CCI 200
270 Speer Semi-spitzer Winchester W-760 74.0 2,650
Win. 120
270 Speer Semi-spitzer Winchester W-760 78.0 2,699
Fed. 210
270 Speer Semi-spitzer Hodgdon H-4895 65.0 2,685
CCI 200
270 Speer Semi-spitzer Alliant RL-19 74.0 2,700
RWS LR
270 Speer Semi-spitzer Alliant RL-15 66.0 2,775
Fed. 210
270 Speer Semi-spitzer Alliant RL-15 68.0 2,890
Fed. 210
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Old January 18, 2011, 12:44 PM   #8
mapsjanhere
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Thanks guys, I let you know how it turns out. I might even try the Newberry method this time.
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Old January 18, 2011, 03:45 PM   #9
That'll Do
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Here's some info from Loaddata.com (open the attachment)
Apparently this info was published in Handloader magazine some time ago (issue 147). I hope this helps.
Attached Images
File Type: jpg 9.3x64.jpg (208.1 KB, 20 views)
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