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Velocities for 25-06 and Retumbo

 
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  #1  
Old 08-07-2008, 05:44 PM
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Velocities for 25-06 and Retumbo

I don't have a cronograph and tried Retumbo in my 25-06. Tightest groups I've ever shot. I tried it because I got sub one inch groups in my step son's 300 RUM at 200 yards with it. MY gosh but that gun KICKS! Anyway, I'm using 60 grains (a slightly compressed load with my bullet seating of a 100 grain Nosler BT) of retumbo and my primers are just started to show a little flattening. This gun and my reloads already shoot sub MOA out to 400 yards, so I hate to give up a lot of velocity for a better group. I've read so much about Retumbo being too slow except for the boomers that I wonder just how much velocity I'm giving up? I can't find any listings for Retumbo with 100 grain bullets.
My gun is a TC Encore with a 26" bull barrel.
Any insight would be appreciated.
Thanks,
Robbin
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  #2  
Old 08-07-2008, 07:00 PM
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Robin, Retumbo is a powder usually used with longer case Mags like the 300 RUM. Actually, with the larger cal mags, it usually gives higher velocities than most other powders. It's a temp stable powder which I like.

The Hodgdon site lists it's use for the 117 gr and 120 gr bullets in the 26.06, and for those bullets it gives good velocities.

Cartridge Loads - Hodgdon Reloading Data Center - data.hodgdon.com
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Old 08-08-2008, 02:37 PM
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Quote:
Originally Posted by MontanaRifleman View Post
Robin, Retumbo is a powder usually used with longer case Mags like the 300 RUM. Actually, with the larger cal mags, it usually gives higher velocities than most other powders. It's a temp stable powder which I like.

The Hodgdon site lists it's use for the 117 gr and 120 gr bullets in the 26.06, and for those bullets it gives good velocities.

Cartridge Loads - Hodgdon Reloading Data Center - data.hodgdon.com
Thanks MontanaRifleman, I checked the site, it listed 3079 for the 117. I would think using a 100 grain bullet I should get higher velocities, it didn't list a barrel length either. It sure does group well...
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Old 08-08-2008, 04:38 PM
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I have mixed emotions when 2 goals are needing to be met: velocity and accuracy.

Ultimately, I personally will sacrifice some velocity for groups that are the "tightest groups I've ever shot."
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Derek M.
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Old 08-08-2008, 06:53 PM
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I have to agree with Derek. I'm a speed fan but, I would gladly give up a little velocity for great accuracy. My guess is your Retumbo load is getting you middle of the road velocities, maybe better. The Hodgdon data is likely from a 24" barrel. If you call them, they'll let you know and they might give you some insight on why they dont list Retumboe for the lighter 25.06 bullets. It might be because it's a compressed load? And yeah, your 100 grain bullets should be going faster than the 117's. But you always have to take those charts with a grain of salt.

Ever consider a heavier bullet? The Nosler 115 BT's have a .453 BC.

Last edited by MontanaRifleman; 08-08-2008 at 06:59 PM.
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  #6  
Old 08-11-2008, 06:57 PM
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Re: Velocities for 25-06 and Retumbo

I have considered a larger bullet and may go to that. I'm a big Barnes TSX fan after having a bunch of bullets blow up on deer over the years. I don't hunt with anything else. I think I'm with you on the group size, but I have a Leupold VXL Target and the bullet drop comp crosshairs are perfect out to 500 yards. If I lose to much velocity, it will mess it up. I'm going to find out two weeks from now, heading out to were I can shoot 500 yards, and then I'll now. These BDC cross hairs are great. I shot a 5 inch group, one shot at 100 - 500 yards. Aim dead at the target with the correct reticle for that range.
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  #7  
Old 08-11-2008, 07:14 PM
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Re: Velocities for 25-06 and Retumbo

I am shooting 59.8 gr Retumbo with a 100gr Barnes TSX and getting 3370 fps. Very accurate load.
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