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.375 Flanged Reloading Question
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Picture of Dave Bush
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Guys, I am in the process of putting together some flanged .375 loads using Jamison brass. Anyone have any suggestion as to powder, perhaps Reloder 15 or maybe H4340 and where to start?


Dave
DRSS
Chapuis 9.3X74
Chapuis "Jungle" .375 FL
Krieghoff 500/.416 NE
Krieghoff 500 NE

"Git as close as y can laddie an then git ten yards closer"

"If the biggest, baddest animals on the planet are on the menu, and you'd rather pay a taxidermist than a mortician, consider the 500 NE as the last word in life insurance." Hornady Handbook of Cartridge Reloading (8th Edition).
 
Posts: 3728 | Location: Midwest | Registered: 26 November 2006Reply With Quote
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Magnum or 2 1/2" ?


Suggest Graeme wright's book, he has loads in that which you can convert to your powders if he hasn't already done so.


.


Previously 500N with many thousands of posts !
 
Posts: 1815 | Location: Australia | Registered: 16 January 2012Reply With Quote
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I use 60 Gr of Rel-15 (Butch Searcy load) with Fed 215 GM primer. Use pinch of fiber fill over the powder and 300 gr North fork bullets.

Hopefully will chronograph the loads in a few weeks, and have Butch tweek th regulation if needed.
 
Posts: 2180 | Location: Rancho Cucamonga, Ca. | Registered: 20 February 2008Reply With Quote
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Picture of Dave Bush
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quote:
Originally posted by 505G:
Magnum or 2 1/2" ?


Suggest Graeme wright's book, he has loads in that which you can convert to your powders if he hasn't already done so.


.


Magnum. Good suggestion. I forgot about Grame's Book.


Dave
DRSS
Chapuis 9.3X74
Chapuis "Jungle" .375 FL
Krieghoff 500/.416 NE
Krieghoff 500 NE

"Git as close as y can laddie an then git ten yards closer"

"If the biggest, baddest animals on the planet are on the menu, and you'd rather pay a taxidermist than a mortician, consider the 500 NE as the last word in life insurance." Hornady Handbook of Cartridge Reloading (8th Edition).
 
Posts: 3728 | Location: Midwest | Registered: 26 November 2006Reply With Quote
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Are there any of the other "cartridge books" that have 375 Flanged Magnum info besides G. Wright's?
 
Posts: 819 | Location: Missouri | Registered: 24 May 2002Reply With Quote
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I haven't seen any.


I think Graeme Wrights book was data gathered from
users and his own data now he has one.


Previously 500N with many thousands of posts !
 
Posts: 1815 | Location: Australia | Registered: 16 January 2012Reply With Quote
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"The Handloader's Manuel of Cartridge Conversions" by J. J. Donnelly
.375 Flanged Nitro Express(2.50")
Bullet - 285gr RN
Powder - 46.0grs of 3130
Velocity - 1890fps
Source - Barnes

For the:
.375 Flanged Magnum Nitro Express(2.94")
Bullet - 300gr RN
Powder 80.0grs of 4350
Velocity - 2500fps
Source - Barnes

Hope that helps.

Colin
 
Posts: 2329 | Location: uSA | Registered: 02 February 2009Reply With Quote
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Picture of CCMDoc
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quote:
Originally posted by Dave Bush:
Guys, I am in the process of putting together some flanged .375 loads using Jamison brass. Anyone have any suggestion as to powder, perhaps Reloder 15 or maybe H4340 and where to start?


Dave,

I'll look tonight and PM you the data I've accumulated


NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003

Don't Save the best for last, the smile for later or the "Thanks" for tomorow
 
Posts: 3465 | Location: In the Shadow of Griffin&Howe | Registered: 24 November 2007Reply With Quote
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RL15 would not regulate in mine. RL-17, and RL-19 were better. Could not get RL-22 or RL-25 to work as others here have suggested. If I remember correctly on RL-22 & RL-25 I could only get up to about 2375 before I ran out of case capacity.


Mac

 
Posts: 1748 | Location: Salt Lake City, UT | Registered: 01 February 2007Reply With Quote
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Picture of Dave Bush
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Guys, I have Gramee Wright's book. I don't know why I didn't think of that. I am going to try Hodgdon 4350 first starting at 72 grains using a 300 grain Hornady round nose. I am shooting Jamison brass.

I will keep you posted on how it goes. Thanks for all your help.


Dave
DRSS
Chapuis 9.3X74
Chapuis "Jungle" .375 FL
Krieghoff 500/.416 NE
Krieghoff 500 NE

"Git as close as y can laddie an then git ten yards closer"

"If the biggest, baddest animals on the planet are on the menu, and you'd rather pay a taxidermist than a mortician, consider the 500 NE as the last word in life insurance." Hornady Handbook of Cartridge Reloading (8th Edition).
 
Posts: 3728 | Location: Midwest | Registered: 26 November 2006Reply With Quote
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Personally for a 375 Flanged or a 375 H&H double, I would be very happy with 300gr bullets at 2300 to 2350fps. Easier on the gun, easier on the shoulder, and bad to the bone on game...


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Posts: 16134 | Location: Texas | Registered: 06 April 2002Reply With Quote
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