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338 Lapua Powder

 
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  #8  
Old 03-10-2013, 12:53 PM
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Join Date: Mar 2013
Location: texas
Posts: 5
Re: 338 Lapua Powder

RL 25 for 250 gr smk and H1000 for 300 gr is what works best for me , I got lucky and didn't have to try a lot of different powders but I did work up much loads in .1 gr intervals, at 200 yds took my time and got one hole 5 shot groups out of both loadings, and the checked them at 800 yds and again at 1600 yds turned out to be like a walk in the park, thank God ! .338 lm is pricey to play with
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  #9  
Old 03-10-2013, 02:44 PM
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Join Date: Apr 2012
Location: Florida
Posts: 200
Re: 338 Lapua Powder

Got a pound of RL33 to play with. Going to use 285 Hornady's. Need to figure out a starting load with it though. Haven't found much data on the RL33 but it looks like I may start around 96-97 grains. Anyone run a Quickload on that combo for me?
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  #10  
Old 03-10-2013, 03:28 PM
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Join Date: Jan 2013
Location: Maple Valley, Washington
Posts: 457
Re: 338 Lapua Powder

There sure isnít much data out there on RL-33. I worked up some loads with it in a long throated 7mm WSM and got impressive results and the burn rate was nominal. I then put it in my 300 RUM and the burn rate jumped way up. What I thought would be a minimum starting load turned out to be a max load that happened to shoot very well. Load development pretty well done butÖ I missed big time on the starting load so do be careful. I did see some data from Alliant for Lapua 338s using 300 grain MKs which showed 2,748 fps and 64,530 psi with 97.5 grains RL-33.
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  #11  
Old 03-10-2013, 03:34 PM
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Join Date: Dec 2011
Location: S.E. Michigan
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Re: 338 Lapua Powder

No matter what you use, it won't go very far in 1 pound jars. Not that 8 pound jugs are available anywhere right now.....
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