long distance 7mm 0r 30cal

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by rotorhead, Mar 10, 2009.

  1. rotorhead

    rotorhead Well-Known Member

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    Hello folks I been off a while due to a lot of overtime but as you know the economy goes down so does the OT. This has given me some time to ponder my next project and sense Russo is working on my stock I am not super busy.

    I was looking at a 7mm such as a STW or RUM, 280 AI or what ever and also the 30's Wby RUM,etc Which has the bet potential for accuracy? What are the pros and cons of each? Cover all your favorites or your hated what ever you want to bring to the table. I am pretty much open for opinions and I know you guys have them.

    Thanks, in advance

    RH
     
  2. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    Whats it for?

    I allways go with a 30 cal I dont know just love them. I know the 7mm has a much higher BC wich translates to less drop, but a big 30 like the RUM or 30-378 will have more down range energy.

    Just my thoughts
     

  3. Supertrucker

    Supertrucker Well-Known Member

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    Depends on how fast you can push said .30. A 168 Berger pushed out of a 7STW at 3200 will have more downrange energy than a .300 RUM pushes a 185 Berger at 3200 and the Big 7's will do it with less recoil.
     
  4. britz

    britz Well-Known Member

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    Deleted.
     
    Last edited: Mar 11, 2009
  5. RockyMtnMT

    RockyMtnMT Official LRH Sponsor

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    I believe that the 300rum will run the 180 to 190 class bullets about 3400fps. No point in debating the potential velocity though.

    If some one is going to run the big 30cal, then the potential comes in with larger bullets, like 210g to 240g. Along with more high bc offerings that appear to be on the horizon.

    Energy is an arbitrary number that has nothing to do with terminal ballistics. Bullet choice has everything to do with terminal ballistics. Use a hunting bullet inside ranges where it has enough velocity to perform. Using energy as the deciding factor is like shooting dull broadheads on an arrow traveling very fast.

    jmho

    Steve
     
  6. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    I guess I was wrong in my thinking sorry guys
     
  7. Limbic

    Limbic Well-Known Member

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    I think it all boils down to recoil. I can get 3100-3200 fps from various bullets from my plain 7mmRM. Some of those bullets don't have the greatest BC but the AB and Bergers do. Recoil is very managable without a break.

    I like the 30 cal but don't own one and have only shot a 30-06 so I can't speak much to them. Like I said I think recoil one of the main factors to consider. Also you might want to read the article "What's wrong with the 30" here on the web site.

    Some people love one or the other. Craig Boddington (the writer) is a big big fan of 30 cal and thinks the 7mm is a bit overhyped. I don't know him but this is an inference from his book Hunting Rifles of NOrth America.
     
  8. jwp475

    jwp475 Well-Known Member

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    A 240 grain SMK out of a 300 RUM hits a harder than a 200 grain bullet out of a 7mm. There is no denying the larger diameter and additional bullet weight
     
  9. rotorhead

    rotorhead Well-Known Member

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    limbic, I have read the article and that is part of the reason I asked the question. I appreciate all the input. The project is for hunting larger animals. I am not a long range hunter if you compare me to some of the obviously good shots here on the forum even though I have taken some animals 6-700 yards and the longest (coyote) at 846 with my swift I no longer own. I am in the process of building a 6.5-06 hunting weight rifle about 9 lbs ready to go I have built guns like this and close in caliber and would not hesitate to shoot 700+ with ample practice. My purpose is the larger animal with no break, I have fired a friends 7 stw and the recoil didn't bother me as well as a 300 Weatherby didn't either. any bigger may be a bit much. I will want a hunting weight gun about 10lbs heavy sporter type barrel or some combination there of. I am leaning toward the 300 weatherby right now but will listen to any suggestions. I could change my mind in the next couple minutes.

    Thanks RH