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Question about H1000 and 338 Lapua

 
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Old 09-16-2012, 06:25 AM
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Question about H1000 and 338 Lapua

I just received my 338 Savage FCP 338 and am about to work up loads starting with H1000. I have an 8# bottle bought within the last 5 months. I did a fairly extensive search on this site and came up with a starting load which is 89 gr. of H1000, 300gr Berger Hybrid, 215 primer, Lapua brass, .025 off lands. My question has to do with charge size. I understand, and have experienced first hand a change in both H1000 and Retumbo, requiring less powder over the last couple of years. Is 89gr. as a starting point Ok, or should I back off a couple of grains. Has anyone worked up loads with the most current lots of this powder. I'm looking for 2750-2800 FPS out of my 26" barrel. Thanks.
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Old 09-16-2012, 09:14 AM
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Re: Question about H1000 and 338 Lapua

You are right on track. But to be safe I would load one at 87 and one at 88 and fired them first durring cleaning and break in. My guess is you will end up about 91 gr unless you have a hot batch of 1000 then you could be held back to 89 or so. Either way I feel you will be able to get the 2750 to 2800 number. Probably closer to 2750 with a 26" tube.

Jeff
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Old 09-16-2012, 09:59 AM
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Re: Question about H1000 and 338 Lapua

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Originally Posted by Broz View Post
You are right on track. But to be safe I would load one at 87 and one at 88 and fired them first durring cleaning and break in. My guess is you will end up about 91 gr unless you have a hot batch of 1000 then you could be held back to 89 or so. Either way I feel you will be able to get the 2750 to 2800 number. Probably closer to 2750 with a 26" tube.

Jeff
Thanks Jeff, that helps!
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Old 09-16-2012, 10:31 AM
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Re: Question about H1000 and 338 Lapua

If H1000 doesnt give you what you want, give retumbo a try. I got very low es with 92 (94ish max) grains Retumbo and 2775fps Out of my RUM, but it should be very similar.
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Old 09-25-2012, 10:57 AM
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Re: Question about H1000 and 338 Lapua

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Originally Posted by angus-5024 View Post
If H1000 doesnt give you what you want, give retumbo a try. I got very low es with 92 (94ish max) grains Retumbo and 2775fps Out of my RUM, but it should be very similar.
With my WM H1000 gave a bit higher SD and ES but always grouped tighter. I used he OCW Load development for both. Also I seem to get a bit more velocity out of H1000 but I have a very heavy 28" barrel that 1:10 twist.

Also this is not apple to apples but I would assume the heavier bullet/case capacity would lend itself more towards the slower powder.
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Old 10-01-2012, 12:48 AM
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Re: Question about H1000 and 338 Lapua

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Originally Posted by Greyfox View Post
I just received my 338 Savage FCP 338 and am about to work up loads starting with H1000. I have an 8# bottle bought within the last 5 months. I did a fairly extensive search on this site and came up with a starting load which is 89 gr. of H1000, 300gr Berger Hybrid, 215 primer, Lapua brass, .025 off lands. My question has to do with charge size. I understand, and have experienced first hand a change in both H1000 and Retumbo, requiring less powder over the last couple of years. Is 89gr. as a starting point Ok, or should I back off a couple of grains. Has anyone worked up loads with the most current lots of this powder. I'm looking for 2750-2800 FPS out of my 26" barrel. Thanks.
How tight is the chamber in the Savage FCP? If at all tight (min-Spec), 89 gr could be close to max already. My 338 LM has a custom bbl and a min spec chamber. I run 91.5 gr H1000 and that is hotter than I would want to recommend to anyone else, but has been extremely stabile and accurate. My group size, ES, & SD got better the hotter I ran it all the way up to 92.5 gr. At 91.5 I get some bolt lift once in a while (hot days). At 92 I had ejector marks. Everything at or above 91.5 gr was single digit ES and sub 1/2 MOA.
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Old 10-01-2012, 02:16 AM
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Re: Question about H1000 and 338 Lapua

Just got my Savage 111 338 Lapua and am also running Berger 300 OTM's but with CCI 250 primers and a brand new lot of H1000. Started with 90 grains. Could not setup my chrono due to too many people at the range. Grouping was about 1-1/2 inch at 100. 92 degrees that day. No signs of pressure with 90. Even fired 10 Hornady brass with very little bolt stick, also fired 10 ea Lapua, Norma and Nosler, no stick at all with those three.
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