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Re: Possible .303 conversions

Post by andym79 » 01 Nov 2017, 8:25 pm

What are your thoughts on CIP pressure ratings, see my post above.

Is the No4 stronger than the 1,2 and 3.

(as a less important side note, if I were to do a 475, they would be loaded light with cast bullets).
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Re: Possible .303 conversions

Post by Tripod » 01 Nov 2017, 9:43 pm

andym79 wrote:What are your thoughts on CIP pressure ratings, see my post above.

Is the No4 stronger than the 1,2 and 3.

(as a less important side note, if I were to do a 475, they would be loaded light with cast bullets).

The No4 is stronger. As for doing a 475 I always make sure no-one in the future can blow anyone up from one of my creations by staying within the pressure limits of the action I am using if there is factory ammo available, If it is a wildcat then this becomes irrelevant.
If anyone wants to do a 44mag conversion I have a spare 44 barrel and a Desert Eagle magazine that I was going to do using a SMLE action
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Re: Possible .303 conversions

Post by andym79 » 01 Nov 2017, 10:03 pm

Tripod wrote:
andym79 wrote:What are your thoughts on CIP pressure ratings, see my post above.

Is the No4 stronger than the 1,2 and 3.

(as a less important side note, if I were to do a 475, they would be loaded light with cast bullets).

The No4 is stronger. As for doing a 475 I always make sure no-one in the future can blow anyone up from one of my creations by staying within the pressure limits of the action I am using if there is factory ammo available, If it is a wildcat then this becomes irrelevant.
If anyone wants to do a 44mag conversion I have a spare 44 barrel and a Desert Eagle magazine that I was going to do using a SMLE action


Now that sounds like a very interesting project, it would wet my appetite a lot more if it were 444m.

Do you think CIP are optimistic at 53,000? I would be trying to keep pressure of the 475 at 20-30k. Short of engraving a warning on the rifle I am not sure how you could stop a future owner run 50k loads.

Is the no4 a 43k or a 53k action?

Plus I may be wrong but are a lot of saami figures old and in cpu? CIP update 303 in 2008, what other rifles are chambered in 303?
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Re: Possible .303 conversions

Post by Tripod » 02 Nov 2017, 7:56 am

andym79 wrote:
Tripod wrote:
andym79 wrote:What are your thoughts on CIP pressure ratings, see my post above.

Is the No4 stronger thapn the 1,2 and 3.

(as a less important side note, if I were to do a 475, they would be loaded light with cast bullets).

The No4 is stronger. As for doing a 475 I always make sure no-one in the future can blow anyone up from one of my creations by staying within the pressure limits of the action I am using if there is factory ammo available, If it is a wildcat then this becomes irrelevant.
If anyone wants to do a 44mag conversion I have a spare 44 barrel and a Desert Eagle magazine that I was going to do using a SMLE action


Now that sounds like a very interesting project, it would wet my appetite a lot more if it were 444m.

Do you think CIP are optimistic at 53,000? I would be trying to keep pressure of the 475 at 20-30k. Short of engraving a warning on the rifle I am not sure how you could stop a future owner run 50k loads.

Is the no4 a 43k or a 53k action?

Plus I may be wrong but are a lot of saami figures old and in cpu? CIP update 303 in 2008, what other rifles are chambered in 303?

Unfortunately CUP and PSI get mixed up all the time, A lot of reloading manuals will have a * beside any loads for the 303 British or it's offspring due to it also being made in the P14, Ruger No1 and a few other stronger actions.
If you wanted it to be safe in a Enfield action leave the parent case the original length and stamp it 475-70 Then there is no factory ammo and if someone in the future handloads it to hot for the action it is their fault for overloading the action.
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Re: Possible .303 conversions

Post by andym79 » 02 Nov 2017, 9:57 am

So would you trust an ME over a NO4 for a case like the Linebaugh?
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Re: Possible .303 conversions

Post by Tripod » 02 Nov 2017, 12:27 pm

andym79 wrote:So would you trust an ME over a NO4 for a case like the Linebaugh?

No, But would I like a ME in 45-90 or 50-110 throwing cast pumpkins at 45-90 or 50-110 pressures then Hell Yes. :clap:
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Re: Possible .303 conversions

Post by andym79 » 02 Nov 2017, 3:13 pm

I won't do a 475 Linebaugh, but I might do a 12x33R.

I for a long time fancied a Martini Enfield in 50-90, the brass was hard to come by and some have stock piled it and want $5 a case. I like my odd, I am willing to do and spend on odd, but $5 for a piece of brass, when Starline sell it in the US for $1.75 AUD, it was too rich for me!
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Re: Possible .303 conversions

Post by Tripod » 02 Nov 2017, 7:08 pm

I payed $1/case for 50-110 Still looking for the action to build it on.
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Re: Possible .303 conversions

Post by andym79 » 02 Nov 2017, 7:32 pm

Tripod wrote:I payed $1/case for 50-110 Still looking for the action to build it on.

$1!!!

Was that a while ago or were they desperate for cash. Most cases fetch near a $1 for a fraction of the brass.

ME are one of the few actions plebs might be able to get. I have fancied doing stuff on an 1885 or #1 but $1500 then a re-barrel etc $2500 rifle. Shame you can't just buy 1885 actions.
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Re: Possible .303 conversions

Post by Tripod » 02 Nov 2017, 7:38 pm

Not just the cases, I also have moulds, Timber for a stock and a barrel sorted but I am yet to find an action at what I would call a reasonable price.
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Re: Possible .303 conversions

Post by Gamerancher » 03 Nov 2017, 9:28 am

Montana Vintage Arms makes 1885 actions, they do however start at a bit over $1100 U.S. :shock:
There is also a limit to how long a case can be and still load in a Martini action, a bit like Remington rolling blocks, the angle is the limiting factor.
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Re: Possible .303 conversions

Post by straightshooter » 03 Nov 2017, 10:38 am

If anybody on this thread is interested in a Martini action please PM me.
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Re: Possible .303 conversions

Post by andym79 » 03 Nov 2017, 6:27 pm

Gamerancher wrote:Montana Vintage Arms makes 1885 actions, they do however start at a bit over $1100 U.S. :shock:
There is also a limit to how long a case can be and still load in a Martini action, a bit like Remington rolling blocks, the angle is the limiting factor.


A bit too rich for me, by the time you got that over here its about $2200 :(
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