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H1000 or Retumbo

 
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  #1  
Old 08-09-2012, 11:57 AM
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H1000 or Retumbo

I did some searches and read a few things about the two. I am loading a 7mm Rem Mag with some 168gr bergers. I am using this as a hunting load only, with good accuracy out to 800-1000yds. From what I am reading, Retumbo has better velocity, but H1000 has better ES values. Will the lesser ES values be a huge concern with the Retumbo? There are obviously a lot of people using it so it must work out alright. I am shooting for a goal of 3000fps or so. Thanks for any input you may have on these powders. Thanks again.
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Old 08-09-2012, 02:32 PM
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Re: H1000 or Retumbo

All you can do is try some and see if your rifle likes it. I have tried Retumbo in several different rifles now and have not found anything that likes it yet. The ES's are generally pretty wide and with H1000 (which is my number one choice) I can usually get very close to or the same velocity as Retumbo. With H1000 it seems much easier to get low ES. Retumbo has the infamous pressure spike at or near max load that can suddenly send your velocity up 75-100 fps.
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Old 08-09-2012, 03:03 PM
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Re: H1000 or Retumbo

Quote:
Originally Posted by Tumbleweed View Post
All you can do is try some and see if your rifle likes it. I have tried Retumbo in several different rifles now and have not found anything that likes it yet. The ES's are generally pretty wide and with H1000 (which is my number one choice) I can usually get very close to or the same velocity as Retumbo. With H1000 it seems much easier to get low ES. Retumbo has the infamous pressure spike at or near max load that can suddenly send your velocity up 75-100 fps.
I am shooting H1000 with some 162gr Hornady Interlocks right now and using 71gr but I haven't had the chance to put it through and chonograph. Judging from what other people are getting with a similar load it is probably going around 3000-3150 at that powder charge.

Probably in the back of my mind I know that the H1000 is probably the better powder for my application, but sometimes a guy gets hooked on the velocity and would like that extra umph. hahaha

I am willing to bet I wouldn't have much trouble getting 3000fps with H1000 also and better ES values.
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Old 08-09-2012, 03:13 PM
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Re: H1000 or Retumbo

i shoot a 338 lapua custom rifle.. I recently switched to retumbo from h1000 for my 300 grain bergers.. 91.1 grains gets me 2703 average with an es of 4.... I never got that low with h1000.. I think 11 was my lowest.. both ar good es numbers.. but im a madd scientist.. all depends on the rifle I think.. but i am having awesome results with retumbo.. oh and I had awesome results with retumbo with my sendero 7mm mag..
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Old 08-09-2012, 03:32 PM
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Re: H1000 or Retumbo

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Originally Posted by kaseyfied View Post
i shoot a 338 lapua custom rifle.. I recently switched to retumbo from h1000 for my 300 grain bergers.. 91.1 grains gets me 2703 average with an es of 4.... I never got that low with h1000.. I think 11 was my lowest.. both ar good es numbers.. but im a madd scientist.. all depends on the rifle I think.. but i am having awesome results with retumbo.. oh and I had awesome results with retumbo with my sendero 7mm mag..
I have heard a lot of good things about velocity performance with the retumbo and 7mm mag, but were you getting descent ES numbers to go with it?

Also, being in the early stages of my reloading career, what kind of ES do most of you consider to be acceptable for hunting purposes? Obviously, the lesser the better, but is there kind of a range you try to keep under as far as "acceptability" would be, so to speak?
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Old 08-09-2012, 04:40 PM
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Re: H1000 or Retumbo

well i would consider 20 and under as pretty good with extreme temp changes.. consider this.. at 50 ft per second velocity change.. at 1000 yrds thats around 9 inches of error.. so the less the better.. i have good results at 20 and under out to 1500... but the less the better and low teens and single digits are ideal for anything.
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Old 08-09-2012, 05:00 PM
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Re: H1000 or Retumbo

Quote:
Originally Posted by kaseyfied View Post
well i would consider 20 and under as pretty good with extreme temp changes.. consider this.. at 50 ft per second velocity change.. at 1000 yrds thats around 9 inches of error.. so the less the better.. i have good results at 20 and under out to 1500... but the less the better and low teens and single digits are ideal for anything.

Sweet, thanks for the info. As much as I would probably enjoy the extra velocity, I think it is probably more important to keep my ES manageable. From what I have read in my many thread searches, I should be able to reach my desired velocities. I am not looking to break land speed records, but if I could get in the 2950-3000 range with good ES and accuracy, that is what I am going for. It would probably be highly more desireable than the benefit of a few fps. I am generally not an advocate of the race to the target anyways I guess.
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