remington 700 rum

jmha5

October 21, 2012 04:57

looking info. on 7 mm rem ultra mag.

0

• 

  mrbruce

  October 21, 2012 05:23

  What exactly are you looking for...

  0
• 

  TWalker

  October 21, 2012 06:11

  With a 140 grain bullet, muzzle velocity of the Rem. 7mm Ultra Magnum is about 200 fps faster than the 7mm Magnum. Ammo costs twice as much, is harder to find, kicks more, and is louder. I haven't seen many new rifles offered lately in this caliber. I would recommend staying with the 7mm Magnum. I own rifles in both calibers and the Ultra Mag hasn't left the gun rack in over 5 years. I occasionally see lightly used Remington M700's in 7mm Remington Ultra Magnum caliber sell for around $600-$800. Price varies a lot depending on condition, scope, etc.

  0
• 

  Ray Boone

  October 21, 2012 14:01

  It's what used to be called "over-bore", which means that you put a lot more powder in it to get only a small increase in velocity. That said, given a barrel length of about 30" you could see a significant increase in velocty, but a 30" barrel on a long bolt action is limited to benchrests. Going with a larger bore, the 375RUM with a 28" barrel has all of the advantages of the 378 Wby and none of the disadvantages.

  0
• 

  chumchum

  October 21, 2012 19:23

  Left or right hand

  0
• 

  bambihunter

  October 21, 2012 22:28

  Had one to shoot long range. The cost and recoil left me always shooting other rifles so I sold it. Very few people NEED a magnum, and fewer yet NEED this high-end of a magnum.
  If you buy used, you can try it, use it, and sell it and still pretty much break even. I bought a Remington 700 Sendero SF and while I loved the gun, I ended up swapping it out for the identical gun in 25-06 since I already had a .300 Win Mag (which I rarely use).

  0
• 

  tsr1965

  October 22, 2012 02:41

  If you like to do a lot of shooting, and not much gun maintenence this, is not the chambering for you. If you don't take care to keep it clean, and not shoot it hot, then you will wash the throat out inside 300 rounds.
  
  This is an extremely high pressure, hot, overbore round. Even taking care of your equipment, you can most likely look at replacing the barrel inside 1000 rounds. On the otherhand, it is just about the only commercially available round, that is NOT proprietary, that is above 25 caliber, and shoots flatter than a 22-250.
  
  I used to have a SAKO 75 Stainless in this chambering, and wish I had never parted ways with it. It was the best factory rifle I ever owned that was not a complete custom build, or semi custom.
  
  Best

  0
• 

  nononsense

  October 23, 2012 04:57

  jmha5,
  
  I have sent you an e-mail hoping to get some more information about your request. In the mean time, here is an article which is fairly accurate for the cartridge and its performance:
  
  http://www.ballisticstudies.com/Knowledge+Base/7mm+Remington+Ultra+Magnum
  
  Necking down high capacity cases limits the performance of these cartridges by barrel length and powder selection. The 7mm RUM suffers from both in this regard. Heavier bullets are the better choice even though some of the velocity freaks will disagree. Retumbo tends to be the better all-around powder for the heavier bullets.
  
  I'm loading a surplus powder which burns very cool yet burns at a rate sufficient to work within a 26" barrel when combined with the 190 gr. Matrix hunting bullets. This has proven to be very successful for longer range, big game hunting.
  
  Best.

  0

Please sign in to leave a comment.