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300 RUM - Hodgdon US869

 
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  #1  
Old 08-23-2009, 09:44 AM
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300 RUM - Hodgdon US869

I've been using Hodgdon's US869 in the 300 RUM with Berger 210 VLD bullets. 101.1 gr of 869 gives me 3,150 ft/sec in a 27" Broughton bbl with single digit SD. Accuracy @ 200yds has been .5 moa and better. Pressure appears to be less than any other loads that I've tried.

Has anyone else been using 869 and heavy bullets in their RUM?
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Old 08-23-2009, 09:54 AM
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Re: 300 RUM - Hodgdon US869

Answer is Yes.

However my RUM is a 338. Bullet is 300 SMK. Single digit ES. Typically identical velocitys 5 out of six shots and the wild one is always 1 FPS high. Accuracy is 1/5 minute or better.


Thanks for posting. I think a trend is in the process of being discovered.
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Old 08-24-2009, 03:53 PM
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Re: 300 RUM - Hodgdon US869

I am interested in your finding. I have been shooting the Retumbo with the 200 smks, but, I have a box of the berger 210 hunters. I may get a pound of the US869 and see how it does. I am shooting a 26" barrel so it may turn out a little slow for me. Is anyone using the IMR 7828 ssc for anything. Availability is running my life these days. thanks for the word on US869. rc
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Old 08-24-2009, 04:13 PM
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Re: 300 RUM - Hodgdon US869

Thanks for the post , I shoot 210 grain bergers I also have a broughton heavy contour barrel man they are sweeeet I currently use retumbo but I have 1 pound of us 869 just setting on the bench looks like I'm going to try your load this week I'll post back and let you know how it turns out for me
Thanks again for the info.
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Old 08-24-2009, 04:30 PM
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Re: 300 RUM - Hodgdon US869

Quote:
Originally Posted by rhouser View Post
Is anyone using the IMR 7828 ssc for anything. Availability is running my life these days. . rc
Yep, in my 270 AM 7828ssc is the goto powder for 140/150 class bullets. Its the only stick powder that I've tried that doesn't bridge. Load is around 83 grains for either bullet.

Velocities are 3600+ and 3500+ respectively. Accuracy is outstanding.

It will be back to US 869 when WC 169s appear.
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Old 08-25-2009, 03:53 PM
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Re: 300 RUM - Hodgdon US869

Varmint hunter, What is your OAL on your us 869 load? I have loaded up a few rounds last night my OAL is 3.675 . US 869 101.1 GRAINS

bigbuck
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Old 08-27-2009, 06:04 PM
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Re: 300 RUM - Hodgdon US869

I don't measure for a traditional OAL. I use a Stoney Point gauge and measure off the ogive. I am currently shooting with the bullet .020" off the rifling. There is still room in the case with the 101.1 gr of US869 and I haven't seen any indication of excessive pressure yet. However, 3,150 ft/sec with a 210gr bullet is as fast as I'm interested in pushing them big boys.

Thankfully I had Kirby put one of his PK brakes on the Broughton. The big 300 RUM recoils less than my .308 win.
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