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    Member bagograss's Avatar
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    1905 Ross buldging brass

    Hi I have a 1905 Ross sprtized in 303 brit. I've read that they had the chambers reamed to make extraction easier. The one I have only puffes the shoulder and neck is this normal? The rest of the case stays almost in spec. It puffes the neck so much I can fit the neck of a live round in it. This may be normal but I'm new to the 1905 model and my 280 Ross almost stays all in spec when fired. This just seem extreme or maybe it was chambered for a different round? Any insights on this would be vary helpful. Thanks!

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    Really Senior Member henry r's Avatar
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    Do you have pics of the brass?

    Do the shoulders blow forward to a steeper angle and the sidewalls straighten out? Perhaps rechambered for 303 Epps? Though this wouldn't explain the neck.

    When you drop a live round in the muzzle end does it sit part way up the projectile or swallow it up to the neck?

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    Member bagograss's Avatar
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    Thread Starter
    I slugged the bore it is .310. The neck opens to .332 ID but the side walls stay almost perfect. The neck rounds out more and gets less angle. I haven't quit figured out how to load pics on here from my phone yet

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    Advisory Panel browningautorifle's Avatar
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    Send me the pics by email and I'll load them...so we can see. Check your PM for my address...
    Regards, Jim

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    In my experience this was the standard military factory chamber for the MkII Ross with Sight MkIII and the II***. This chamber has nothing to do with the chamber mods done to the MkIII in 1914-15.

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    Advisory Panel browningautorifle's Avatar
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    Here are the pics as passed to me for this rifle...
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    Regards, Jim

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    Advisory Panel browningautorifle's Avatar
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    That's definitely a wildcatted chamber...not even close to .303.
    Regards, Jim

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    Member bagograss's Avatar
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    Thanks for posting the pics. I was looking in a reloading manual and noticed a round called 303 magnum looked close maybe it was chambered for that. My manual has no mesurments for the 303 magnum tho.

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    Advisory Panel browningautorifle's Avatar
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    Try these two and see if you can match it up... .303 Magnum - Wikipedia

    .303 Magnum
    Regards, Jim

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    Member bagograss's Avatar
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    So I measured with the 303 magnum measurement on those sites and there farther off then the 303 brit round. Found out that 280 Ross brass can make 303 magnum tho haha I've been making 280 Ross from 375 ruger guess the 303 magnum is even harder to come by then the 280 Ross.

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