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load workup for 300 RUM...

 
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  #15  
Old 03-30-2011, 12:38 PM
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Join Date: Jan 2011
Location: Bozeman, MT
Posts: 160
Re: load workup for 300 RUM...

Here are the loads I've tested so far (last 2 weeks) and some rough notes on each. I'm shooting a Remington Sendero SF II , scoped w/ a Huskemaw 5-20LR.

Nosler Accubond, 200g loads:
93g Retumbo, 3.61 OAL, CCI250 : 3045FPS avg, poor accuracy (2.3" @ 100)
89.5g RL25, 3.61 OAL, CCI250 : 2995FPS avg, poor accuracy (2" @ 100)
91g RL25, 3.61 OAL, Rem 9 1/2M : 3050FPS avg, OK accuracy (1.75" @ 100)
92g RL25, 3.61 OAL, Rem 9 1/2M : 3075FPS avg, OK accuracy (1.5" @ 100)
95g Magnum, 3.61 OAL, Rem 9 1/2M : 3055FPS avg, OK accuracy (1.6" @ 100)
97g Magnum, 3.61 OAL, Rem 9 1/2M : 3075FPS avg, OK accuracy (1.5" @ 100)
98g Magnum, 3.61 OAL, Rem 9 1/2M : 3204FPS avg, Good accuracy (1.1" @ 100)

Barnes Tipped TSX (LRX), 200g loads:
87g Retumbo, 3.62 OAL, CCI250 : 2890FPS avg, Good accuracy (1.1" @ 100) <- this was a 5 shot group with 1 flyer...4 of 'em were sub-MOA
85g RL25, 3.62 OAL, CCI 250 : 2910FPS avg, Good accuracy (1.2" @ 100)

I've got some more loads built, just need time to go shoot/record them. I'm slowly dialing in the accuracy and bringing up the velocity. That load with 98g of Magnum was moving pretty fast, but there weren't any pressure warning signs.....

I'll keep reporting back (if you want) with the additional loads I've got worked up. I've got 5 more loads put together with the 200g TTSX that I need to get out and shoot. My Sendero seems to like that bullet.

--Ben
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  #16  
Old 03-30-2011, 01:03 PM
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Join Date: Dec 2009
Location: Boise, Idaho
Posts: 483
Re: load workup for 300 RUM...

Venom your gun must like the Ramshot magnum powder, mine hated it and even at minimum loads I had lots of pressure, my gun hated ramshot magnum powder. I had 7lbs I had to unload to get me some more retumbo. Goes to show you not every gun is created the same. Good luck and keep on shootin.
Chuck
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  #17  
Old 03-30-2011, 04:06 PM
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Join Date: Jan 2011
Location: Bozeman, MT
Posts: 160
Re: load workup for 300 RUM...

Quote:
Originally Posted by freebird63 View Post
Venom your gun must like the Ramshot magnum powder, mine hated it and even at minimum loads I had lots of pressure, my gun hated ramshot magnum powder. I had 7lbs I had to unload to get me some more retumbo. Goes to show you not every gun is created the same. Good luck and keep on shootin.
Chuck
I'll keep fiddlin' with Retumbo too. My ultimate goals in loading for this new gun is:
- sub-MOA accuracy
- use a high BC bullet that's also got a good reputation for putting animals down quickly
- 200g minimum (otherwise I might as well go shoot a Win Mag or my 30-06)
- 3150 FPS

So....whatever gets me there safely is what I'll do. My gun does seem to like the Magnum powder so far, but I want to put some more rounds through it to confirm. I'm really curious what the TTSX/Magnum loads are gonna produce.

--Ben
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  #18  
Old 04-05-2011, 02:20 AM
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Join Date: Nov 2008
Location: oregon
Posts: 797
Re: load workup for 300 RUM...

I have had some really good luck with the h1000 and retumbo powders. I will get some figures to you guys soon. 200 grain accubond and the 208amax ...
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  #19  
Old 04-07-2011, 11:42 PM
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Join Date: Nov 2008
Location: oregon
Posts: 797
Re: load workup for 300 RUM...

just did some testing.. AWESOME<<< my rifle loves retumbo powder. 200 grain accubond at 100 yrds.. maybe 1/8 to 1/2 inch.. crazy.. hole after hole doing the 208 amax next week.. should be awesome!!

kasey field
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  #20  
Old 04-08-2011, 01:27 AM
Junior Member
 
Join Date: Dec 2010
Posts: 1
Re: load workup for 300 RUM...

93 gr retumbo , 210 bergers , 215s, remington brass = .75 groups out of a stock 300 ultra remington 700@ 100 yard 1.50 @200
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  #21  
Old 04-12-2011, 01:52 PM
Silver Member
 
Join Date: Jan 2011
Location: Bozeman, MT
Posts: 160
Re: load workup for 300 RUM...

Quote:
Originally Posted by freebird63 View Post
Venom your gun must like the Ramshot magnum powder, mine hated it and even at minimum loads I had lots of pressure, my gun hated ramshot magnum powder. I had 7lbs I had to unload to get me some more retumbo. Goes to show you not every gun is created the same. Good luck and keep on shootin.
Chuck
Headed out to the Logan range tonight to try out some more Magnum loads. All with 200g Barnes TTSX (LRX). I've got 3 loads w/ Magnum and 2 with RL-25 to test out. I'll post my results and loads later tonight.
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