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338 Sin

 
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  #64  
Old 02-05-2011, 07:00 PM
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Location: Kansas
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Re: 338 Sin

The larger diameter of the Norma cartridge will also apply more thrust to the lugs.
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  #65  
Old 02-05-2011, 10:09 PM
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Location: Watertown, SD
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Re: 338 Sin

rfurman that is another reason why you don't want to go over the std mag case head.

I chambered a barrel today and fitted a break. Need to bed the action in the stock, open up the channel for the barrel too. I ordered up the stuff I need to make a hydro form die from mcmaster carr so that should be here in the middle of the week and hopefully we should have a test fire or 20 next weekend.

I am getting pretty excited. All of the work and money going into this project I hope it runs right along side the norma and Rum for performance.
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  #66  
Old 02-05-2011, 10:12 PM
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Re: 338 Sin

Did you get the forming issue fixed?
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  #67  
Old 02-05-2011, 10:14 PM
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Re: 338 Sin

Yes I did, all i needed was 1 form die to get the basic shape and if I want full capacity then I will use the hydro form die. If I get some time I will make a pneumatic press for kicking out shells fast.
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  #68  
Old 02-05-2011, 11:15 PM
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Re: 338 Sin

Quote:
Originally Posted by trueblue View Post
Geargrinder,
Could you post a pic with those bullets seated showing coal?
Sure, I'll do it in the morning.

Just remember, these aren't fire formed yet. The Neck is in the right spot, but the shoulder and case walls still need to be blown out.
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  #69  
Old 02-06-2011, 02:34 PM
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Re: 338 Sin

Here it is.

They are all aligned by the tip of the bullet.

Left to right

338 Edge- 3.800" - This is my normal Edge length,
338 Sin- 3.500" -This is what fits in my Savage Centerfeed DBM
300g SMK
338RUM- 3.680" - This is what fits in my factory Rem 700 LSS
338 Sin- 3.500" -This is what fits in my Savage Centerfeed DBM
225g NAB

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  #70  
Old 02-06-2011, 02:57 PM
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Join Date: Jul 2007
Location: Lansing, MI
Posts: 184
Re: 338 Sin

Quote:
Originally Posted by geargrinder View Post
Here it is.

They are all aligned by the tip of the bullet.

Left to right

338 Edge- 3.800" - This is my normal Edge length,
338 Sin- 3.500" -This is what fits in my Savage Centerfeed DBM
300g SMK
338RUM- 3.680" - This is what fits in my factory Rem 700 LSS
338 Sin- 3.500" -This is what fits in my Savage Centerfeed DBM
225g NAB

Very cool indeed. Something tells me I'll be ordering a barrel and dies sometime next fall.

One question that I had, I know Savage made rifles in RUM cartridges. Any idea what the mag length on them would have been?
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