Caliber advice

Discussion in 'Long Range Hunting & Shooting' started by msp21, Jun 24, 2019.


Help Support Long Range Hunting by donating:


  1. LVJ76

    LVJ76 Well-Known Member

    Messages:
    264
    Joined:
    Feb 2, 2019
    For caliber I'm a 7mm guy. So, for something lightweight a 22" 7SAUM, works great out to 700 yds so just over your goal of 600. I've been reading great things about the 7mm SS and the 7mm Sherman Max, Elkaholic can provably give you more info on these, but im sure they will also work great for your goal.

    I like the 7mm caliber because it has better ballistics than the 30 Caliber Cartridges and it has a wide range of bullet weights from 100gr to 195gr.

    Hope thia helps
     
    WAHOOYAHOO likes this.
  2. yorke-1

    yorke-1 Well-Known Member

    Messages:
    969
    Joined:
    Jul 5, 2008
    This isn't accurate and it's been discussed on here many times. The fastest powder in a long barrel will still be the fastest powder in a short barrel.
     
    Peddler 76 and Calvin45 like this.
  3. Calvin45

    Calvin45 Well-Known Member

    Messages:
    246
    Joined:
    Apr 13, 2019
    Yup. My 270 has a 22 inch barrel and 4831, 7828, rl 22, 25, all provide higher performance than 4350, 4064, or rl19. The blast and flash with slow powders is very notably worse than fast powders in short barrels however, and this consideration certainly would be good reason to choose a faster burn rate in a shorter pipe, but not because it’ll perform better.
     
  4. Wolf76

    Wolf76 Well-Known Member

    Messages:
    349
    Joined:
    Jan 5, 2014
    I should have stated it better. Faster powders aren't "required", they are VERY often used to avoid the massive blast and flash that comes with powder still burning as the bullet exits the barrel.
     
    Calvin45 likes this.
  5. yorke-1

    yorke-1 Well-Known Member

    Messages:
    969
    Joined:
    Jul 5, 2008
    That also isn't accurate. Do some testing with identical loads in both short and long barrels and the results will surprise you. I've compared identical loads in short (18-20") barrels and long (28-30") barrels and the results are the same whether burning 25gr of powder or 140gr of powder. Some powders just produce more flash than others based on the composition of the powder. It's not directly tied to burn rate.
     
  6. djfergus

    djfergus Well-Known Member

    Messages:
    247
    Joined:
    Dec 25, 2015
    30 cal or 7mm. 7mm Rem mag is my all around favorite but I wouldn't want to go less than 26" barrel with it. Yes, 300wsm or winmag typically going to hit harder than 7mm RM within 600yds depending on bullet choice. Over the years I have figured out that it really is true about bore size: there is no replacement for displacement, but you also have to consider the skill needed to be consistent behind that ultra light 30cal magnum. It certainly can be done and 600 yards shouldn't be a problem. I have a 300 winmag , 7mm rm, 300 Norma, and just recently sold the second 270 wsm I've owned. The 7mm RM is the most pleasurable for me to shoot of those 4 magnum calibers. Just my thoughts and everyone has their own likes.
     
    LVJ76 likes this.
  7. popgun240

    popgun240 Active Member

    Messages:
    40
    Joined:
    Dec 27, 2014
    I shoot a Browning ABoltIII in 300 Win Mag. Using Barnes LRX-BT 175 gr bullet's loaded to a Muzzle Velocity of 3100 fps, you get over 1500 fp Muzzle Energy at 600 yards. 3.5" high at 100 yards is on at 300, 10" low at 400, 24" at 500 and 48" low at 600 yards. I'm a disabled Vietnam Veteran and an Amuptee so I need a good resonablely accurate rifle. It has a 26" barrel and is easy for me to handle. I'm over 6'2".
     
    Overkill338, Gregger and Lee Goodwin like this.
  8. arch408

    arch408 Well-Known Member

    Messages:
    95
    Joined:
    Dec 6, 2012
    You sure know how to open a bucket of worms. Everybody has their favorite. I built a Senduro 7mm STW last year with a 27 inch fluted barrel. Love it, but it's not a joy to carry. I have a large stash of 8mm RM brass. I also have a 7mm RM, .300 SAUM, 700 Mountain rifle .338 WM, .300 RUM and a .338 RUM. All have pros and cons. My SAUM is a titanium ultra light with a Leupold ultra light scope. That's my carry gun. The 7mm RM is a good compromise and ammo is sold every where. The .338 WM and.300 RUM are as big as I like without a muzzle brake. The .338 RUM is a fairly light weight rifle and recoil is vicious with out a muzzle brake so I put up with the noise. If I built another long range rifle, I'd look at the .300 PRC and 28 Nosler. I'd probably stay with a 28 or 30 caliber Magnum type rifle unless you want to install a muzzle brake. Oh, and if you use a normal 700 magnum action you will probably have to do some feed rail work. Ultra Mag actions have wider rails and cut out magazine boxes. If you make an Ultra Mag, I'd use a Wyatt magazine box so you could seat heavy bullets out further and take advantage of the large case capacity. Well that's my take on the subject. Pick your poison and good luck. I'm ordering a .260 AI RemAge barrel for a .308 action I've got to make a switch barrel rifle. I also have a long Magnum action I contemplating on making a switch barrel rifle using the RemAge barrels. You might consider doing that. Then you could several magnum calibers at your beck and call with a simple barrel switch. Ready made barrels are reasonable at Northland shooters supply and Criterion can custom chamber if you desire other than their standard calibers.
     
  9. 6.5x284 light recoil and easy to load for accuracy.
     
  10. Lee Goodwin

    Lee Goodwin Well-Known Member

    Messages:
    138
    Joined:
    Oct 5, 2018
    Sometimes the slow burn powders are fun to shoot at dusk and it looks like a fire breathing dragon.
     
    Calvin45 likes this.
  11. djm670

    djm670 Well-Known Member

    Messages:
    157
    Joined:
    Aug 20, 2011
    Objective data comparison: .300 WM vs .375 H&H
    rifle weight in lbs - recoil energy in ft-lbs - recoil in speed ft/sec

    300 Win. Mag. (150 at 3320) 8.5 23.5 13.3
    .300 Win. Mag. (165 at 3110) 8.0 26.2 14.5
    .300 Win. Mag. (180 at 2960) 8.5 25.9 14.0
    .375 H&H Mag. (235 at 2700) 9.0 29.5 14.5
    .375 H&H Mag. (270 at 2690) 9.0 36.1 16.1
    .375 H&H Mag. (300 at 2530) 9.0 37.3 16.3

    I suppose it depends on the bullet weight one uses....and the stock profile/geometry..... ???
     
    Lee Goodwin likes this.
  12. 5.56×250

    5.56×250 Well-Known Member

    Messages:
    393
    Joined:
    May 16, 2019
    I guess that if you compared , say, a 215gn in a 300WM against the 235gn in the 375H&H, the recoil could be close enough to the same if you took in to account the differences in rifle design and weight.
     
    djm670 likes this.
  13. Lee Goodwin

    Lee Goodwin Well-Known Member

    Messages:
    138
    Joined:
    Oct 5, 2018
     
  14. Lee Goodwin

    Lee Goodwin Well-Known Member

    Messages:
    138
    Joined:
    Oct 5, 2018
    Can you do a .338 comparison...please.