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Shooting & Reloading - Mausers, Big Bores and others >> Lee Speed Forum & Archive

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Rolland
.333 member

Reged: 31/12/06
Posts: 281
Loc: Camp Verde, AZ

Ihave a 1925 Lithgow that has been converted to a lee speed
#157214 - 23/03/10 08:29 PM

I am having .303 surplus military ammo problems, I have set the head space so I know it is correct. The ammo does not stick in the chamber and extracts fine. So...............my problem is the military brass splits and cracks at the shoulder ranging toward the mouth of the case they all do it. The factory Remington fires just fine with no showing of any slits or cracks.
The military is markedRG9-6-53 on the box further markings are M*7 ISAA 32 cartridges to the box. Headstamp is RG 52 (l OR 7)
Is there an answer? is the military brass weaker?

I know you downunder guys (blokes) shoot more of the .303 than I do.

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Con
.333 member

Reged: 24/05/04
Posts: 261
Loc: Victoria

Re: Ihave a 1925 Lithgow that has been converted to a lee speed [Re: Rolland]
#157286 - 24/03/10 11:38 AM

Age hardened and thus brittle.
Cheers...
Con

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darwinmauser
.300 member

Reged: 07/05/07
Posts: 217
Loc: Darwin NT

Re: Ihave a 1925 Lithgow that has been converted to a lee speed [Re: Rolland]
#157287 - 24/03/10 11:40 AM

Your military brass is just to old ,as it gets older brass becomes brittle. Yours is Radway Green made in 1952 and is the standard Mk7 round .How many rounds do you have left? I would be thinking of pulling the projectiles and reloading them into new cases ,you won't be able to reuse the cordite .

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Rolland
.333 member

Reged: 31/12/06
Posts: 281
Loc: Camp Verde, AZ

Re: Ihave a 1925 Lithgow that has been converted to a lee speed [Re: darwinmauser]
#157402 - 25/03/10 09:23 AM

I mentioned this in the reloading section. I only have 20-25 left. so I will trash them as I don't care for necks split problem . Thanks for the information. I have to say that they are very accurate though.

Edited by Rolland (25/03/10 09:24 AM)

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