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Poll: Better off using a 300 RUM or 7mm 180 bergers at 3000 fps
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Better off using a 300 RUM or 7mm 180 bergers at 3000 fps

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300 RUM or 7mm with 180 bergers at 3000 fps

 
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  #78  
Old 12-07-2011, 05:41 PM
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Join Date: Apr 2010
Location: Boise , Idaho
Posts: 131
Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Short of a 223...any well placed shot will harvest any Elk. Seen 'em drop in their tracks with a 257 roberts and a 270 win. Go with the biggest gun you can handle without a break...otherwise you will need to pass up all those close shots in order to put on hearing protection. Elks not going to wait around for that. Unless you don't care about your ears, then I'm typing in the wind.
They make an Idaho light weight 50bmg under 16lbs if you go with a break....
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  #79  
Old 12-10-2011, 03:21 PM
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Location: Wyoming
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Do the 300 RUM and shoot the Cutting Edge C-21 bullet. 180 grain .6 BC at near 3500 fps. It is a hunting bullet that will not blow into a zillion pieces like the berger bullets when you hit something. Remember, it is not about hitting something, it is about killing it when you hit it. Since you mentioned elk you need a big heavy bullet of quality construction you can drive through an elk at any shot angle you may be presented. This allows you more opportunities to kill an elk instead of having to pass on shots until you get that perfect shot angle you want. Problem is nobody passes on the shots and way to many elk are lost each year to guys slinging target type vld bullets into elk at angles or situations that cause high wounding loss.
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  #80  
Old 12-21-2011, 12:50 PM
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Quote:
Originally Posted by Long Time Long Ranger View Post
Do the 300 RUM and shoot the Cutting Edge C-21 bullet. 180 grain .6 BC at near 3500 fps.
That does yield some pretty impressive numbers.
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  #81  
Old 12-21-2011, 04:30 PM
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

Quote:
Originally Posted by Bravo 4 View Post
That does yield some pretty impressive numbers.
From their website.


Quote:
This aggressive ogive bullet is designed for single shot rifles or for individuals willing to shoot their rifles loading a single round of ammunition into the chamber and not into a magazine. A bore rider is incorporated in the design to ensure premature contact with the lands does not occur.

COAL will be the brass trimmed to trim length + 1.034" bullet projection for recommended Seal Tite Band position. Rifle must have a minimum throat depth of .137" in order to shoot this bullet at stated 1.034" bullet projection. Bullets can be seated deeper by up to .100" if throat depth requirements are not met.

A minimum 1-10" barrel twist rate with muzzle velocity of 3150fps or greater is required. Real World BC of .570 was calculated using muzzle velocity of 3380fps and actual drops from 500 to 1000 yards. Muzzle velocity was established using a .300 Tomahawk rifle with a 30" barrel with a barrel twist rate of 1-10".
https://cuttingedgebullets.com/cgi-b...on&key=MTH_C21

Interesting bullet but it looks like you have to have the right rig and really push them very hard to get peak performance.
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  #82  
Old 01-02-2012, 05:33 PM
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

I have had excellent success with this bullet this year with excellent long range accuracy and killing performance out of a 300 winchester and a 300 RUM. This bullet offers good performance on high velocity close range shots and long range shots.

I am working on actual bc with this bullet now measuring actual drops at long range targets.
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  #83  
Old 01-14-2012, 03:11 PM
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

I have two 7mm rem mags and two 300 RUM's. Here are the actual average ballistics out of the four where I live at 5000 feet elevation. You are comparing apples and oranges with a mid range cartridge vs a super long range hunting rifle. 180 grain berger vs 180 grain Cutting Edge.

The 7mm drops 84" more with nearly 7" more wind drift at 1000 yards, no contest. The 180 grain bullet out of 300 RUM is traveling about 350 fps faster than the 180 berger at 1000 yards, no contest. The 300 RUM has nearly 550 more foot pounds of energy at 1000 yards, no contest. The 7mm remington is a mid range cartridge and there is no comparison to it against a super long range hunting cartridge. If a long range hunting cartridge is what you are after and a 300 RUM fits your action then this is a no brainer. Why try to make a mid range cartridge into a long range cartridge when you can just get the one that works best to begin with instead of trying to make a very marginal cartridge work long range.

To see how good the 300 RUM is compare it to the 338-378 wby which is the best standard long range cartridge out there. The 338-378 with the 225 grain Cutting Edge bullet only beats the 300 RUM 7.5" in drop, 5" in wind drift and 75 fps in velocity. The 338-378 has a significant advantage of over 500 foot pounds energy because of the heavy 225 grain bullet. These are all actual ballistics out of my rifles with accuracy loads.

So when you are ready for the top of the line long range hunting rifle you can get a custom action and build a 338-378 wby and beat the 7mm by over 90" of drop, over 12" in wind drift, over 400 fps, and over 1100 foot pounds of energy at 1000 yards. Now you are hitting the animal with a large 338 caliber bullet 45 grains heavier that will create exponentially more damage to the animal for quick kills vs wounding loss in the little 7mm. Talk to hunters who have shot animals long range for 30-40 years with all calibers of weapons and have seen hundreds of kills. Then make your decision of a long range hunting rifle.
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  #84  
Old 01-15-2012, 12:09 AM
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Re: 300 RUM or 7mm with 180 bergers at 3000 fps

I dont disagree with you that the 7mm is a marginal longrange elk cartridge. I have been comparing the 7mm with 168 bergers going 3150 fps (which my gunsmith assured me his reamer produces) to the 300 RUM 210 going 3100 I think( I dont have the BC computer with me at work) and the 180 CE and I dont think there is a 84" difference in drop if anything the 7 is as good or better, maybe I have my numbers all messed up? But in reguards to energy I agree both are better but I only get a 200-300 ft lbs more energy running the number with the 300. I have been considering things and Im thinking when I get comfortable shooting long range I might rebarrel to the 338 RUM in a 26" (28" isnt out but really want to stick with the 26) and using the 225 CE bullets as there is quite a measurable increase in energy and more appropriate to pursue my longrange elk endevors. For now I am much more comfortable learning to shoot with a catridge that has significantly less recoil, muzzle blast and cheaper to shoot than the ultra. Plus going to an ultra would have costed me almost 500$ more for the build and I am already waaayyyyyyy!!!!! over budget already. I had the redding competition die set dies and was also already set up for the 7 mag, also I wont need a new mag box or muzzle break. So I agree with what you are saying there are better choices to pursue long range elk and I will build my gun up when Im ready. I also understand that the 7 isnt the best learning caliber either but I think I am comfortable with its limitations and its versitility to allow me to grow into a better shooter and then rebarrel with minimal cost as I can use the action that will be all blueprinted and trued with the jewell trigger and bedded into a mcm a-5 so that when my skills and abilities have been proven and developed the only cost to get a more appropriate long range elk gun will be a new mag box, barrel and muzzelbreak. Doing it in this manor allows me to splitup cost. I doubt I will be able to afford a full custom or to build a gun like this again or at least in the near future so I will go this route. I appreciate the help and assistance I know that you have an amazing amount of expierence and knowledge and greatly respect what your opinions are. Thank you
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