6.5x55 vs 6.5x284

Ralph Rupple

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Oct 31, 2014
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arkansas
hey guys help me out here i got a rem.700 in 6.5x55 swede, what im trying to figure out is just how much of a differance 6.5x284 is than the swede? im gonna get a good barrel,trigger,stock etc. for the swede but that got me to thinking why not covert to the 284. this is gonna be a deer/hog gun mostly but i would still to have the abilty to shoot up to a 1000yds. i do reload but finding load data for the 6.5x55 in a mordern action is a pain in the butt! im gonna be shooting 140s.any help would be appericated gun)
 

HARPERC

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Jan 28, 2011
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From an internet chart, the 6.5x55 has about 57 grain H2O capacity the 6.5x.284 roughly 66 grains.

I'm guessing that will yield 2-3% more velocity all else being equal. Any of the 3 will (you mentioned .284) perform what you listed.

No first hand loads for the 6.5x55, I can help look some up if no first hand data gets posted.
 

benchracer

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Dec 18, 2009
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hey guys help me out here i got a rem.700 in 6.5x55 swede, what im trying to figure out is just how much of a differance 6.5x284 is than the swede? im gonna get a good barrel,trigger,stock etc. for the swede but that got me to thinking why not covert to the 284. this is gonna be a deer/hog gun mostly but i would still to have the abilty to shoot up to a 1000yds. i do reload but finding load data for the 6.5x55 in a mordern action is a pain in the butt! im gonna be shooting 140s.any help would be appericated gun)

Load data for most of the 6.5's is crappy, to put it mildly. The exceptions that come to mind are 6.5 Creedmoor and .260 Remington. I started with the 6.5x55, moved up to the 6.5-284, then up to .264 Win Mag. The 6.5-284 offers very little over a 6.5x55 that is loaded to its potential in a modern rifle.

My advice to you is to stay with the Swede, use Lapua brass and Berger 140's (or Hornady AMAX's), and buy a copy of Quickload (along with a good chronograph) to assist you with load development. If you re-barrel, be sure to go with an 8 twist and, at least, a 26" barrel.

If you really want more speed, skip the 6.5-284 and go with a bigger case. I am much happier with my .264 Win Mag. Realize, though, that barrel life in the 6.5's tends to fall off quickly as case capacity goes up. You can mitigate that, somewhat, by developing reduced loads for the Win Mag.

If you intend to shoot your rifle a lot, you may be better served to stay with a mid-sized case, such as the Swede. For general use, my 6.5x55 gets the nod. My .264 Win Mag comes out to play when I feel the extra horsepower and speed is called for. It is not a plinking rifle.
 

Ralph Rupple

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Joined
Oct 31, 2014
Messages
35
Location
arkansas
I appreciate the information you confirmed what I was already thinking I think I'm gonna re barrel my 6.5x55.would you happen to have some powders and charge wts to recommend along with the excellent bullets?
 

benchracer

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Dec 18, 2009
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I did my load development with H4831. Started around 42 grains and worked up carefully. Because I didn't have QL or a chrono at the time, I was using .260 Remington data to sanity check my loads. My final load came in at 48.2 grains. I recommend that you use a starting load to test for seating depth. Once seating depth is established, do your powder charge workup.

RL-17 and RL-22 are worth consideration. The newer RL-26 may also work well, but I don't have any experience with it.
 

Varberger757

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Last edited:

Greyfox

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Jan 21, 2008
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Northeast
My experience with the Swede, 260Rem, 6.5CM class of cartridges is that they are solid 700 yard performers on deer sized game with the 140VLD. The 6.5-284 gets you to 1000 yards.
 

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