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270 wsm

  • 24-03-2011 10:40am
    #1
    ballistic
    Closed Accounts Posts: 167 ✭✭


    I currently use a 270 win. I am playing with the idea of getting a 270 wsm.
    I have all the ballistics programmes and articles but what I really need to hear about is actual experience with the round.

    So far anyone I spoke to says that I would be mad to change to this calibre because any slight gains in velocity (usually much less than advertised) are countered by more recoil, more barrel ware, poorer supply of ammunition, less magazine capacity.

    However when I look at the ballistics of a 150 grain sst doing 3100 fps its amazing. Infact in most cases it will beat a 300 win mag in the wind and shoots flatter.


Comments

  • #2
    It wasn't me!
    Registered Users, Registered Users 2 Posts: 13,034 ✭✭✭✭It wasn't me!


    It looks amazing, but I'd say you'd have a nightmare keeping it in ammo. However, it's also a bit redundant here, where shots aren't long, typically. If you were in big, open mountain country, where shots at four hundred yards were the norm, then it sounds incredible. With the recoil of about a .30-06, getting the trajectory of a laser and the wind-drift ability and killing power of a jazzed up .270, it's perfect for that. However, I'd have a long, hard look at ammo supply and prices first. If you do end up going for it, keep us posted, would absolutely love a look.


  • #3
    ballistic
    Closed Accounts Posts: 167 ✭✭ballistic


    I think ammo is the problem. The recoil wouldnt be excessive. I would have to give up my little a tec cmm 4 for a t8 which I would hate to do. But the actual ballistics of the 150 doing 3100 are very appealing for longer shots or heavy wind. It might be a better option when reloading becomes legal. Id love to hear from someone who has chronographed a 270 wsm.


  • #4
    Glensman
    Registered Users, Registered Users 2 Posts: 1,226 ✭✭✭Glensman


    I read on the Chuck Hawks page that they actually slowed the .270 Win down so as to boost .270 WSM sales!
    It's a shame you cant re-load or you could just speed your .270Win back up to where it should be.

    I have no personal exp of the WSM (I own a .270 Win), but I wouldn't change if I were you...


  • #5
    Glensman
    Registered Users, Registered Users 2 Posts: 1,226 ✭✭✭Glensman


    ballistic wrote: »
    I think ammo is the problem. The recoil wouldnt be excessive. I would have to give up my little a tec cmm 4 for a t8 which I would hate to do. But the actual ballistics of the 150 doing 3100 are very appealing for longer shots or heavy wind. It might be a better option when reloading becomes legal. Id love to hear from someone who has chronographed a 270 wsm.

    Here it is... Originally sent to me about 2 years ago by JohnGalway (thanks again)

    The load that made the .270's reputation was a 130 grain spitzer bullet at a muzzle velocity (MV) of 3,140 fps. The recoil energy from firing this load in an 8 pound rifle amounts to about 16.5 ft. lbs. This level of performance can still be achieved by the reloader. Today's standard factory loads drive the 130 grain spitzer to about 3,060 fps. The Speer 130 grain flat base spitzer has a ballistic coefficient (BC) of .408, and a sectional density (SD) of .242; the 130 grain boat tail spitzer has a BC of .449. These numbers are right in the big game ballpark. And because the 130 grain .270 bullet is fast, it hits hard. Factory energy figures look like this: muzzle energy (ME) of 2,705 ft. lbs., 100 yard energy of 2,226 ft. lbs., 200 yard energy of 1,817 ft. lbs., 300 yard energy of 1,468 ft. lbs., and 400 yard energy of 1,175 ft. lbs.


  • #6
    GixxerThou
    Closed Accounts Posts: 225 ✭✭GixxerThou


    It definately looks good in with 150g heads, All Ive seen here though are 130 federals.. Surely the Hornady Superformance are enough for anyone?? Doing 3150fps out of my 22inch barrel and an inch better in a 10mph wind than federals at 350 yards.. The wsm doesnt have enough pro's to beat the con's of 1) Magnum silencer 2) Price/Availabillity of ammo 3) Recoil. When using a good rangefinder and a scope with target turrets the flatness doesnt really come into it and just because its slightly better in the wind doesnt mean you will shoot better.. How many times have you overcompensated for wind on your first shot?? Stick with what you know and put the money into ammo and practice practice practice!


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  • #7
    ballistic
    Closed Accounts Posts: 167 ✭✭ballistic


    GixxerThou wrote: »
    It definately looks good in with 150g heads, All Ive seen here though are 130 federals.. Surely the Hornady Superformance are enough for anyone?? Doing 3150fps out of my 22inch barrel and an inch better in a 10mph wind than federals at 350 yards.. The wsm doesnt have enough pro's to beat the con's of 1) Magnum silencer 2) Price/Availabillity of ammo 3) Recoil. When using a good rangefinder and a scope with target turrets the flatness doesnt really come into it and just because its slightly better in the wind doesnt mean you will shoot better.. How many times have you overcompensated for wind on your first shot?? Stick with what you know and put the money into ammo and practice practice practice!

    I suppose it all comes down to what we regard as a significant improvement. Some think that there is no need for a 270 and that a 243 is plenty. I was very surprised to see that the mighty 300 win mag could be bettered in the wind by the 270 wsm. Wind is the one variable that we have to guess, and just like drop the more you have to aim off for it the greater your potential for inaccuracy.


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