Long Range Hunting Online Magazine

Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Berger Bullets


Retumbo, H1000 Barrel Length???

LinkBack Thread Tools Display Modes
Unread 01-16-2010, 01:43 PM
Gold Member
Join Date: Oct 2009
Location: Arizona
Posts: 899
Retumbo, H1000 Barrel Length???

Iv just started reloading for my 300RUM and it has a 25.25" barrel. Iv been loading up some Retumbo for it. My question is with a 25.25" barrel will I get the most velocity out it or should I use maybe a little faster burning powder. I know most ultra mags have at least 26" barrels on them so it got me thinking if it would be a better idea to try H1000 or something faster? I dont have a chrony so I dont know my velocity and Iv been loading 210gr bergers and 200 accubonds. Any advice would be appreciated.
Reply With Quote
  •   #2  
    Unread 01-16-2010, 02:23 PM
    Gold Member
    Join Date: Oct 2005
    Location: Great Falls, MT
    Posts: 712
    Re: Retumbo, H1000 Barrel Length???

    Sounds like you may have a Sako or a Tikka. You need not worry however, 3/4 of an inch will not make a noticable difference. Just find the load that shoots the best and go with it. Good luck and God Bless


    Last edited by MT4XFore; 01-16-2010 at 02:23 PM. Reason: Fat fingers
    Reply With Quote

    Unread 01-17-2010, 12:57 AM
    Gold Member
    Join Date: Jan 2003
    Location: centre,alabama
    Posts: 948
    Re: Retumbo, H1000 Barrel Length???

    O the shorter the barrel the faster the powder otherwise you blow some out the barrel...
    Reply With Quote
    Unread 01-17-2010, 07:43 AM
    Official LRH Sponsor
    Join Date: Jul 2006
    Location: Harrisburg, PA
    Posts: 2,713
    Re: Retumbo, H1000 Barrel Length???

    Without a chronograph, you're simply guessing at velocity.

    My experience with the .300 RUM and the heavier bullets is that Retumbo will give consistently higher velocity over the others.

    I suggest you do comprehensive load development with a few different powder and bullet combinations to see what the rifle likes, not what you want it to shoot.
    Reply With Quote
    Unread 01-17-2010, 09:54 AM
    Join Date: Jun 2007
    Location: Wyoming
    Posts: 2,816
    Re: Retumbo, H1000 Barrel Length???

    I also shoot short barrels: 15"-18" with cartridges like 6-284, 7mm Dakota, and 338 Lapua Improved.
    I pretty much use the slower powders myself too, or I will use the next fastest burn rate from teh slowest one typically used in longer barrels:
    Such as, H-4831sc for my 6-284, H-4350 and or Hybrid 100V for my 6.5-284's, H-1000 for my 7mm Mag Imp, Retumbo with my 7mm Dakota, and Retumbo with my 338L Imp.
    All of these have barrel lengths that I have listed above.
    Find what is most accurate for your rig and be happy and as mentioned a chrono will tell you alot.
    Reply With Quote
    Unread 02-08-2010, 11:15 AM
    Junior Member
    Join Date: Oct 2009
    Location: Clarkston, WA
    Posts: 22
    Re: Retumbo, H1000 Barrel Length???

    I just did an experiment that might help you out! I shot the max h1000 load compared to the max retumbo load in the seirra book and the h1000 averaged 2710 and the retumbo averaged 2890. the retumbo wazs definately hotter load, the h1000 could have went a little hotter to match the primer markings on the retumbo!
    Reply With Quote
    Unread 02-09-2010, 05:12 PM
    Gold Member
    Join Date: Feb 2005
    Location: Texas born and raised
    Posts: 752
    Re: Retumbo, H1000 Barrel Length???

    Just a thought,

    My bunting bud, worked up loads with both Retumbo and H-1000. He foud that while the Retumbo did give higher velocities, it also loosened up pockets on the bras faster than the h-1000 did. So you might give that some consideration due to the state of affairs we have in getting components these days.

    If you r happy with getting three to five loads verses the same accuracy and getting 12 - 15 loads per case, then no biggie either way.

    Just some food for thought.
    Mike / Tx

    My Photo's

    "Heck why would I lie, most folks don't believe the truth when I tell them"
    Reply With Quote


    Thread Tools
    Display Modes

    Similar Threads for: Retumbo, H1000 Barrel Length???
    Thread Thread Starter Forum Replies Last Post
    300 RUM: Retumbo or H1000? bobh918 Rifles, Bullets, Barrels & Ballistics 15 11-28-2015 10:15 PM
    7mm RM/140 AB with H4350/H4831SC/H1000/Retumbo? txsendero Reloading 8 06-13-2011 09:41 PM
    H1000 Or Retumbo SHRTSHTR Reloading 15 10-31-2009 09:47 PM
    7mm STW Retumbo & H1000 & 160 Accubonds HooterShooter Reloading 9 04-26-2006 10:35 PM
    H1000 vs Retumbo Nicholas Rifles, Bullets, Barrels & Ballistics 3 11-19-2002 10:54 PM

    All times are GMT -5. The time now is 09:27 PM.

    Powered by vBulletin ©2000 - 2017, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC