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7 STW or RUM?

 
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  #1  
Old 07-19-2009, 07:17 PM
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Location: New Bern, NC
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7 STW or RUM?

Two identical weight rifles, is there a SIGNIFICANT difference in felt recoil between the 7MM STW and the 7MM RUM? I've owned and loved the STW BUT the Rem 700 SPS SS is not offerred in STW now, not that I can find. It's either 7 MM Mag or the RUM. If there's a major difference(punishing!) difference would you consider a rechamber on a 7 MM Mag to STW and tailor the rechamber to a specific load thats performed extremely well in your other STWs?
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Old 07-19-2009, 07:46 PM
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Location: Texas
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Re: 7 STW or RUM?

Quote:
Originally Posted by longrifle View Post
Two identical weight rifles, is there a SIGNIFICANT difference in felt recoil between the 7MM STW and the 7MM RUM? I've owned and loved the STW BUT the Rem 700 SPS SS is not offerred in STW now, not that I can find. It's either 7 MM Mag or the RUM. If there's a major difference(punishing!) difference would you consider a rechamber on a 7 MM Mag to STW and tailor the rechamber to a specific load thats performed extremely well in your other STWs?
There is not a lot of difference in the recoil of a 7mm RUM and a 7STW but there is in velocity.

At 300 yards the 7mm RUM delivers 24% more energy than the 7 rem mag and 12% more than
the 7 STW.

If your going to buy a new rifle I would buy the 7 Rem Mag and have it rechamberd to 7 STW
or screw on a custom barrel chambered in 7 STW.

If its the speed you want then just buy the 7 RUM and be done with it.

I like both the STW and the RUM and they both have there strong points.

With 140gr bullets the STW is very flat but the RUM can handle the bigger bullets at higher
velocities because of case capacity.

Probably not a lot of help but that's the difference.

J E CUSTOM
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Old 07-19-2009, 08:51 PM
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Location: New Bern, NC
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Re: 7 STW or RUM?

Thanks! That makes the decision alot easier! In comparing factory ballistics I CAN see alot more downrange energy and better trajectory with a heavier bullet. Without a huge difference in recoil I'd just stick with the RUM, maybe swap for a custom barrel on THAT later to tweak accuracy! Should make a great bean field gun out to 500 or so with a good quality scope! Really appreciate the feedback!
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Old 07-19-2009, 08:57 PM
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Join Date: Jan 2007
Location: Fairfax County, Va
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Re: 7 STW or RUM?

If you don't like the thump from the RUM, put a QUALITY side port brake on it and you can shoot it all day.
Dave
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Old 07-21-2009, 11:03 AM
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Join Date: Aug 2007
Location: Oklahoma
Posts: 162
Re: 7 STW or RUM?

He is exactly right, for the lighter bullets, the STW is the only way to go. THe RUM uses more powder for basically the same speeds. The only advantage I can see is with the 180 & 200 grain bullets you can get a little more velocity with the RUM. not enough to matter in my mind.

It's still the STW for me, no matter what. (I have dies, brass, loads, etc) I have shot some 168 & 180's and they do fine for me.

Everyone's got their opinions and these are mine.
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  #6  
Old 07-21-2009, 12:49 PM
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Re: 7 STW or RUM?

I don't own a 7mm RUM but have a 28" sporter weight 7mm STW Win 70 with a brake and 29.5" Rem 700 7mm STW which weighs about 12 lbs. Both of those are comfortable to shoot. I also have three 300 RUMS. 1 a 8 lb 26" sporter which is not at all pleasant to shoot, a 30" medium Palma 10 lb with a brake which is comfortable, and 15 lb 30" without a brake which is comfortable

Of that bunch the 12 lb 7mm STW is my favorite ballistically and where I shoot can reach nearly 2000 yards supersoinic. It has tle lowest wind deflection and flattest trajectory of any. I built it as a 1 mile target rilfe and it's excellent for that.

The ballistics program "quickload" has a decent recoil calulator. You can always add weight or a brake to cut down the energy and velocity.

I consider the 7mm RUM as in the same class%
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Old 07-21-2009, 03:02 PM
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Location: The rifle range, or archery range or behind the computer in Alaska
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Re: 7 STW or RUM?

With both of my 300 RUM's the velocity potential was awesome in the beggining. Once the throats were burned, the friction when up and subsequently so did the pressure. I had to reduce my 180 loads to around 3250 in both of them. My thoughts were that if I am stuck with 3250 with a 180 what the he!! am I using such a big freakin case for? I could easily run that with a 300 wby or sacrifice just a little less velocity and run the 300 WSM. I cant imagine the 7RUM being any better. My vote is for the 7STW. You may be having to run STW velocities some time after your barrel "breaks in". Not saying you will but I have read of two other cases where guys were having trouble with their 7RUM's increasing pressures over time and having to back off to lower loads.
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Quote:
Originally Posted by Broz View Post
Please just answer one very simple question. Why would anyone shooting long range load a low BC , low SD 168 gr offering in a 300 win???????

My answer to this is. The only reason is to make the 7 RM look good. There is no other reason.

Jeff.
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