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  #11  
Old 12-10-2017, 02:06 PM
cal50 cal50 is offline
 
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  #12  
Old 12-10-2017, 02:51 PM
col b col b is offline
 
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Looks great! I found a 4" LOC carbide diamond point burr on ebay a while back. That was a godsend for the initial hogging cuts. Took only two passes at .010 with a 4 flute to clean up the coarse finish. It was a 600K SA receiver and very hard. I have looked high and low for another one and it's like they don't really exist.

Again, great job.
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  #13  
Old 12-11-2017, 05:40 PM
cal50 cal50 is offline
 
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The M1 drill rifle receivers are a perfect base once harvested from its drill rifle fate.
M1 receivers are made from damn nice material and heat treated properly and anyone that cuts , grinds or welds on them will learn carbide tooling is your friend.
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  #14  
Old 12-11-2017, 10:43 PM
Eliyahu Eliyahu is offline
 
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Quote:
Originally Posted by col b View Post
Looks great! I found a 4" LOC carbide diamond point burr on ebay a while back. That was a godsend for the initial hogging cuts. Took only two passes at .010 with a 4 flute to clean up the coarse finish. It was a 600K SA receiver and very hard. I have looked high and low for another one and it's like they don't really exist.

Again, great job.
I believe the break is around the 720K mark between the 'early' alloys (3115 or 3120) and the later 8620 tool steel used through the rest of production. As hard as that receiver was, it was a 'softie'!

Eli
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I buy "Tipo II" and BM59 parts
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  #15  
Old 12-12-2017, 06:16 AM
col b col b is offline
 
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Great. I fretted for a while reading that the earlier the harder. Almost went with a 3.6M for the first one. I still have the 3.6 and a 4.66 but not going to cut any more until there are some barrels available. Thanks for the heads up!
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  #16  
Old 12-12-2017, 07:31 AM
Eliyahu Eliyahu is offline
 
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Quote:
Originally Posted by col b View Post
Great. I fretted for a while reading that the earlier the harder. Almost went with a 3.6M for the first one. I still have the 3.6 and a 4.66 but not going to cut any more until there are some barrels available. Thanks for the heads up!
Bula is reportedly offering ITAL barrels for $175.

Eli
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  #17  
Old 12-12-2017, 07:34 PM
col b col b is offline
 
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I don't see any information on the bula forge URL that would indicate that they make or sell them. Are they keeping them secret?
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  #18  
Old 12-12-2017, 09:00 PM
Eliyahu Eliyahu is offline
 
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Quote:
Originally Posted by col b View Post
I don't see any information on the bula forge URL that would indicate that they make or sell them. Are they keeping them secret?
Maybe! Give them a call, they've supposedly shipped some out.

Eli
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  #19  
Old 12-12-2017, 11:35 PM
Pmangelos Pmangelos is offline
 
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Location: California
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Great info here, Iím gathering the parts for this as well. Can you share who did the engraving?

Thanks,
Paul
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  #20  
Old 12-21-2017, 08:20 PM
mp_tx mp_tx is offline
 
Join Date: Jul 2010
Location: Austin, TX
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Very nice illustration of the stripper clip guide install.
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