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Reloading Techniques For Reloading


.300 Win Mag

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Old 12-24-2007, 01:41 AM
Junior Member
Join Date: Jan 2006
Location: Santaquin
Posts: 16
.300 Win Mag

What are some of the loads you are using for the .300 Win mag and a 180gr bullet. also what are the group sizes I am having a hard time getting mine to shoot under 1" at 100 yds. So far I have used RL 22 and IMR 4350.

Any Info would be helpful.
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Old 12-24-2007, 12:05 PM
Join Date: Jul 2007
Location: Idaho
Posts: 366
Use 200 gr for all my shooting
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Old 12-24-2007, 01:28 PM
Silver Member
Join Date: Dec 2007
Location: Gila Wilderness,New Mexico
Posts: 121
Clint... I just started reloading so take EVERYTHING with a grain of salt... BUT for me I it was all about Seating Depth, then trying different amounts of powder... I have a non-comerical website The New Mexico Sportsman that goes over some of the issues that I had to work thru...

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Old 12-24-2007, 01:59 PM
Silver Member
Join Date: Aug 2006
Location: corpus christi tx
Posts: 424
i use 79 gr h4831 with the 180 gr accubond seated at 3.34 velosity avg is 3106 fts i have shot several sub 2 1/2 3 shot groups at 500 yd and one group that was 1 1/2 inchs at 500 this is a custom built rifle. start lower and work up 79 gr is max in my rifle
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Old 12-24-2007, 02:23 PM
Silver Member
Join Date: Jun 2006
Location: buffalo, OK
Posts: 354
I shot 75.5gr re22 with 180 AB seated to fit clip, 1/2" group at 100. You might try H4831SC it is a good powder for 180gr.
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Old 12-24-2007, 03:51 PM
Platinum Member
Join Date: Dec 2001
Location: Winterville, NC
Posts: 1,496
I owned a Sendero in .300WM back in 2001 and here is some of the load data that I recorded while working up loads for that rifle.
In March of that year I tried; 180gn Nosler Ballistic Tip (NBT)/once fired Rem. brass/CCI BR2/75.5gn RL22/.3400" (3shot groups).
May 2001; 180gn NBT/Rem case/Fed 210 LR/75.5gn H4831SC/.6605"
180gn NBT/Rem case/CCI BR2/76.0gn RL22/.4765"
June 2001; 168gn Speer HPBT Match/Rem case/CCI BR2/74.0gn
180gn NBT/Rem case/CCI BR2/71.0gn of IMR4350/.476"
Hope this little bit of info helps. JohnnyK.
"The pleasure you get from life is equal to the attitude you put into it."
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Old 12-24-2007, 04:11 PM
Bronze Member
Join Date: Feb 2005
Posts: 61
180 gr Accubond and 70.0 gr IMR 4350, 2980 fps, .015" off the lands, just under 1" groups.
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