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Author Topic: .300RUM Remington brass issue  (Read 1373 times)

Offline Mulie87

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.300RUM Remington brass issue
« on: March 15, 2019, 07:48:28 PM »
Just had a .300RUM built. Loaded Remington brass and one out of four or so will not extract. Guy at the range told me that Remington’s .300RUM heads are not to specs and a few thousands smaller than SAMMI. Anyone ever hear of this or had the same issue? I just ordered Nosler brass (since that’s the most popular (besides Remington brass only due to price) so we’ll see how that works.

Online baker5150

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Re: .300RUM Remington brass issue
« Reply #1 on: March 15, 2019, 07:54:58 PM »
Buddy had the same issue with his RUM and Winchester brass
Switched her to Norma brass and no issues.

Offline rudysts

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Re: .300RUM Remington brass issue
« Reply #2 on: March 17, 2019, 08:02:33 PM »
Was your Rum built on a custom action or a Remington action ? if on a Rem action sometimes they have an extraction issue due to poor timing on the bolt handle. I had that issue once with a 7 Rem mag.

Offline Mulie87

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Re: .300RUM Remington brass issue
« Reply #3 on: March 17, 2019, 09:37:10 PM »
Remington action.

Offline rudysts

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Re: .300RUM Remington brass issue
« Reply #4 on: March 18, 2019, 06:36:14 AM »
This video might help
in my case I had Benchmark barrels build me a 7 Rem with an action they supplied their fix was to install a Sako extractor.

Offline jasnt

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Re: .300RUM Remington brass issue
« Reply #5 on: March 18, 2019, 07:04:16 AM »
Adg is making rum brass now
https://www.howlforwildlife.org/take_action  It takes 10 seconds and it’s free. To easy to make an excuse not to make your voice heard!!!!!!

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 TheArmoredShop

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Re: .300RUM Remington brass issue
« Reply #6 on: March 23, 2019, 02:38:26 PM »
Just had a .300RUM built. Loaded Remington brass and one out of four or so will not extract. Guy at the range told me that Remington’s .300RUM heads are not to specs and a few thousands smaller than SAMMI. Anyone ever hear of this or had the same issue? I just ordered Nosler brass (since that’s the most popular (besides Remington brass only due to price) so we’ll see how that works.


Are you using a case gauge for your brass? Full length sizing die?

I’ve seen this happen before, especially in semi’s. If your case gauge is off, they won’t eject properly.

I learned about them not long ago and sure glad I did otherwise the 15k 223 I just reloaded would’ve been garbage. Good 20$ investment


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Offline yorketransport

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Re: .300RUM Remington brass issue
« Reply #7 on: March 23, 2019, 08:26:25 PM »
It's more likely that your extractor is tweaked a little bit than the case rims are that far out of spec.

Remington extractors aren't that difficult to replace, even if it's the older riveted style. The parts are about $25 although the proper jig to peen the rivet is a little pricey.

Offline Mulie87

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Re: .300RUM Remington brass issue
« Reply #8 on: March 23, 2019, 10:16:53 PM »
No case gauge, but I do full length resize. Just got new Nosler brass and they seem to exract/eject just fine. Albeit they were empty. I’m heading to the range for load development tomorrow am and will report back with extraction/ejection performance using Nosler brass.

Offline Mulie87

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Re: .300RUM Remington brass issue
« Reply #9 on: March 24, 2019, 01:30:59 PM »
Shot the Nosler brass today. Didn’t have any extraction/ejection issues at all. Nosler brass for me👍
« Last Edit: March 24, 2019, 09:23:15 PM by Mulie87 »

 


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