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Gundog01
.333 member

Reged: 16/05/15
Posts: 291
Loc: Ohio usa

Is there a 300grn load for .333 Jeffery?
#327297 - 15/04/19 09:16 AM

Just curios if there is a hotter load then 250grn for the 333? I guess you could develop one, you would just need a custom width bullet?

Would this cause a pressure spike or could most mausers handle it?

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wkudu
.275 member

Reged: 24/12/17
Posts: 60
Loc: United States

Re: Is there a 300grn load for .333 Jeffery? [Re: Gundog01]
#327299 - 15/04/19 10:11 AM

The .333 Jeffery's best load is the 300 grainer.

Faulty construction of the original 250 grain bullets are what really killed the cartridge. not being a standard bolt face probably didnt help with popularity and manufacture cost.

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DarylS
.700 member

Reged: 10/08/05
Posts: 27009
Loc: Beautiful British Columbia, Ca...

Re: Is there a 300grn load for .333 Jeffery? [Re: wkudu]
#327300 - 15/04/19 11:11 AM

Originally a 300gr. at 2,050fps, seems to me.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Gundog01
.333 member

Reged: 16/05/15
Posts: 291
Loc: Ohio usa

Re: Is there a 300grn load for .333 Jeffery? [Re: DarylS]
#327315 - 15/04/19 08:39 PM

I wonder if you could make a 350grn load going 2000fps?

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DarylS
.700 member

Reged: 10/08/05
Posts: 27009
Loc: Beautiful British Columbia, Ca...

Re: Is there a 300grn load for .333 Jeffery? [Re: Gundog01]
#327322 - 16/04/19 02:38 AM

Don't see why not, depends on the rifle.
Just did a search - Rimmlss Jeffery - 250gr. at 2,500fps, 300gr. at 2,200fps. Rimmed Jeffery, 250 at 2,400fps and 300 at 2,150fps. test bl. 28"

I see no reason the 350 wouldn't make 2,100fps or maybe more with today's powders.

Case capacity is given as 84gr., which is very close to a .338 Win Mag, seems to me.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Homer
.416 member

Reged: 07/04/09
Posts: 3081
Loc: Canberra, Australia

Re: Is there a 300grn load for .333 Jeffery? [Re: DarylS]
#327353 - 16/04/19 06:06 PM

G'Day Fella's,

Gundog01, FYI www.woodleighbullets.com.au make 0.333" bullets for the .333 Jeffery, in 250grn RNSN (Catalog- # 60), and both a 300grn RNSN (#61) and FMJ (#62).

These bullets, should be available in the USA, from Huntington Die Specialties, in CA.

Hope that helps

D'oh!
Homer

--------------------
"Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"

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DarylS
.700 member

Reged: 10/08/05
Posts: 27009
Loc: Beautiful British Columbia, Ca...

Re: Is there a 300grn load for .333 Jeffery? [Re: Homer]
#327370 - 17/04/19 04:07 AM

Also in Canada from www.tradeexcanada.com.

in reloading components

https://www.tradeexcanada.com/produits/87

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Gundog01
.333 member

Reged: 16/05/15
Posts: 291
Loc: Ohio usa

Re: Is there a 300grn load for .333 Jeffery? [Re: DarylS]
#327465 - 19/04/19 10:13 PM

I will call Lonnie at Superior ammo and see what he says. He is great at tweaking vintage loads. I will report back with what he says.

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