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Author Topic: 37XC build  (Read 9686 times)

Offline Jason

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Re: 37XC build
« Reply #90 on: October 21, 2019, 12:10:38 PM »
Seems to be coming along good, speeds are definitely up there for the heavies. I would like to have one of the Labradars too, hopefully here in the future I'll buy one. I'm still using the old style Caldwell chrono which shows 1 of 3 shots  :bash: 

Offline jasnt

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Re: 37XC build
« Reply #91 on: October 23, 2019, 05:22:26 AM »
Psa
Found out ms makes an adapter for huge mbís.
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #92 on: October 23, 2019, 09:04:23 AM »
This may or may not interest you but thought I'd pass it along anyway, Hornady is coming out with a new 390gr .375 Cal A-Tip bullet.  Per Hornady G1 .987  G7 .497


Offline hogslayer

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Re: 37XC build
« Reply #93 on: October 23, 2019, 03:51:53 PM »
If your having misfires with CCI 250ís you most likely have something wrong with your ignition in the bolt.  I would first check firing pin fall.  Pretty easy to do.  You want to me at least .240Ē.  I have seen this happen with certain triggers and the action not being timed.  It does effect accuracy as well.

Offline jasnt

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Re: 37XC build
« Reply #94 on: October 23, 2019, 04:38:08 PM »
If your having misfires with CCI 250ís you most likely have something wrong with your ignition in the bolt.  I would first check firing pin fall.  Pretty easy to do.  You want to me at least .240Ē.  I have seen this happen with certain triggers and the action not being timed.  It does effect accuracy as well.
at .046 firing pin protrusion.   Having the misfires in my 300wm aswell so I donít think itís the rifle.   Both bad lots came from same store so Iím wondering if itís a storage issue. Never had a problem with cci primers ever.
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #95 on: October 23, 2019, 04:45:56 PM »
This may or may not interest you but thought I'd pass it along anyway, Hornady is coming out with a new 390gr .375 Cal A-Tip bullet.  Per Hornady G1 .987  G7 .497


may be worth a try if they will stabilize in 1:10
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 hogslayer

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Re: 37XC build
« Reply #96 on: October 23, 2019, 04:57:04 PM »
Itís how much it falls measuring from the bolt head.  Not how much it sticks out of the bolt face.  Itís how much slam the firing pin has against the primer.  Timney are known for this.  Except the elite.

Offline jasnt

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Re: 37XC build
« Reply #97 on: October 23, 2019, 06:25:18 PM »
Neither have a timmeny trigger.   The 300 wm has punched 1047 cci primers with out an issue till these 2 cases has never had a hiccup
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #98 on: October 24, 2019, 08:09:09 PM »
Don't be a wimp, pull the brake and shoot it like a man to get your velocities. :chuckle:

I've never run my 338 CT pistol over a chronograph for the same reason. I got my muzzle velocity by zeroing at 100 with a know bullet then measuring drops out to 600 yards. It's a pain, but it's been close enough to get me on target to 1800 yards within 2 shots.
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Offline jasnt

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Re: 37XC build
« Reply #99 on: October 25, 2019, 05:17:21 AM »
Iíll probably shoot it with out the brake for speeds. Then verify at range. I know the brake can affect speed but how much idk.   Figure itís better than paying $150 for the adapter.  Thatís another box of bullets.   
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #100 on: October 25, 2019, 05:27:17 AM »
Iíll see if I can get some kind of adapter made for the Magneto. The member formerly known as Jay_sharkbait owes me some work so Iíll get him to design and 3D print something to try out.
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Offline jasnt

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Re: 37XC build
« Reply #101 on: October 25, 2019, 07:26:40 AM »
Iíll see if I can get some kind of adapter made for the Magneto. The member formerly known as Jay_sharkbait owes me some work so Iíll get him to design and 3D print something to try out.
that would be awesome. 
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #102 on: November 01, 2019, 06:02:15 PM »
Well I shot it with out the brake. Not bad at all really.  Iím at 2945 without the brake.  Screwed on the brake, held 14.5 moa high and nailed the 735 yard plate.  Iím thinking Iím pretty close with speed but got plenty of room for more powder.  Hopefully Iíll get more time this next week to play with it. 
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #103 on: December 01, 2019, 03:40:27 PM »
37 is shooting great. May start playing with the flat lines this week if I get time
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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 #104 on: March 04, 2020, 05:04:28 PM »
Got around to testing the flatlines today.  Iím at just over 1/2Ē at 100 and 3029 FPS with out the brake.  Still playing with seating depth.   
243Round ct. 126
338rc 773
338 lapua rc 200
37XC rc 218
2020 Rifle rc 361

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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