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7mm RUM velocity

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Unread 12-27-2003, 11:58 AM
Bronze Member
Join Date: Dec 2003
Location: Negaunee, Mi
Posts: 51
7mm RUM velocity

Whats the highest velocities everyone is getting with the 7mm rum using 140 and 160 gr bullets? What powders? Barrel length?
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Unread 12-27-2003, 01:02 PM
Platinum Member
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,830
Re: 7mm RUM velocity

I read an arctile in the "Western optics hunter" magazine recently that had a 7mm RUM built on a Ruger #1 action w/a 28.5" bbl and he claimed to be getting 3730 FPS w/140 Nosler ballistic tip. around 1/2" group. I do not know what powder he used, I imagine it was something like RL-25 or some super slow powder.

I dont know exactly how true it is either.
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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Unread 12-27-2003, 06:51 PM
Posts: n/a
Re: 7mm RUM velocity

A friend of mine is getting 3310 fps with the 160 gr. TSX and Retumbo, very consistant velocity and 3/4" groups at 100 yards with his factory 700 SS.
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Unread 12-27-2003, 07:52 PM
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Join Date: Sep 2002
Location: Illinois
Posts: 837
Re: 7mm RUM velocity

I'm shooting a 26" SF Sendero in 7 Ultra and am getting 3500+ with a 140gr NBT Moly over 96.0gr of I-7828 lit by F-215s. I don't think this is max, but it shoots so well, I'm going to leave it alone. I haven't done much with the heavies because I haven't been able to find the really slow powders, i.e. H50BMG and the like.
As usual, I would recommend you reduce any load and sneek up on max. My understanding from other shooters is this round spikes pressure fast.
Good Shooting,
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