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Author Topic: 37XC build  (Read 6336 times)

Offline jasnt

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37XC build
« on: July 05, 2019, 06:00:54 PM »
First component of the build got picked up today. 
Savage 112 target magnum in 338 lapua.  I was going to sell this barrel but I just couldnít help but play with it.  Loaded up a preasure test with h1000 and 300 gr bergers. Found a nice node at 2935.  Iíll play with that till she levels out.  The target accu trigger is nice. Set at 1.5lbs for now,  may lighten it up a bit more.  Brake definitely tames the recoil, was like shooting a 308
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline Jason

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Re: 37XC build
« Reply #1 on: July 05, 2019, 06:43:01 PM »
Sweet.! I can't wait to see the progress.

Offline hogslayer

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Re: 37XC build
« Reply #2 on: July 05, 2019, 09:26:24 PM »
Thatís moving for a factory 338 LM. 

Offline jasnt

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Re: 37XC build
« Reply #3 on: July 05, 2019, 09:41:02 PM »
Thatís moving for a factory 338 LM. 
my thoughts too. Had a slight crater of the firing pin but nice round conners and no ejector swipe. Bolt opens with one finger. 2975 has slightly stiff bolt lift and I backed off

Using magneto speed so I trust the speed
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline jasnt

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Re: 37XC build
« Reply #4 on: July 06, 2019, 09:36:45 AM »
Not sure what was up with my v3 yesterday day but could not duplicate that load today.  Speeds where all over with es of 45. Dropped down to 94gr h1000 and 2816fps.  With es of 3 and 1/2 moa.  Hope to stretch it out tomorrow.
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline b23

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Re: 37XC build
« Reply #5 on: July 06, 2019, 11:24:48 AM »
Am I reading that right, you dropped down to 94gr H1000?!  And that's with the 300 or 250 gr. Bergers??  Either way and even seated way out, that's well above book max.  With 300's you're almost 10gr above Berger's book max and with 250's your 4gr above their book max.

Offline jasnt

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Re: 37XC build
« Reply #6 on: July 06, 2019, 12:15:19 PM »
Yes 300gr and yes 94gr.  No preasure signs what so ever.  With hornady brass no less and cci 250ís and jammed 20k.  Iím comfortable with the load

This scale has never been calibrated so who knows what the charge really weighs. All my cartridges end up over book max
« Last Edit: July 06, 2019, 01:56:57 PM by jasnt »
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline jasnt

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Re: 37XC build
« Reply #7 on: July 06, 2019, 03:15:59 PM »
This is from Hodgdon.  Iím 2gr over their max listed and not compressed. My col is 3.930
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline Jason

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Re: 37XC build
« Reply #8 on: July 06, 2019, 10:01:36 PM »
I would have expected you col to be quite a bit longer.

Offline jasnt

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Re: 37XC build
« Reply #9 on: July 07, 2019, 06:41:33 AM »
I would have expected you col to be quite a bit longer.
it would be if I hadnít sent yorke his unithroater back lol. This thing could be taken out quite a bit. Should have my new barrel ready to mount up in a couple months or so.  May just ream this barrel to 33xc since Iíll have the dies and go/gage anyway
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline Magnum_Willys

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Re: 37XC build
« Reply #10 on: July 07, 2019, 09:44:54 AM »
94 gr is max on my 3.95 coal 300 gr Lapua but thats with 215 primers and SMK's.  With a slow batch of h1000 and cci's with Bergers I could could squeeze in another grain. 

Offline Magnum_Willys

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Re: 37XC build
« Reply #11 on: July 07, 2019, 09:47:47 AM »
Dropped down to 94gr h1000 and 2816fps.  With es of 3 and 1/2 moa. 

This is where I'm at with H1000 and a 28" tube.   Generally use rl33 or n570 to get up in the 2845-2870 range

Offline jasnt

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Re: 37XC build
« Reply #12 on: July 19, 2019, 06:32:18 PM »
Die set is on its way and brass will be next week.  Still waiting for reamer and gages
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline yorketransport

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Re: 37XC build
« Reply #13 on: July 20, 2019, 09:17:09 PM »
Hurry up and build this! I'm out of good ideas and I need to live vicariously through you. :chuckle:
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Offline jasnt

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Re: 37XC build
« Reply #14 on: July 20, 2019, 11:03:24 PM »
Hurry up and build this! I'm out of good ideas and I need to live vicariously through you. :chuckle:
its coming along.   Looking forward to getting it up and running
243Round ct. 631
338rc 773
338 lapua rc 174
37XC rc 75
2020 Rifle rc 4

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

 


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