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Thread: 270WSM, how does it rate(velocity) to the 270Win?

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    Default 270WSM, how does it rate(velocity) to the 270Win?

    Who here has actually chronographed the 270WSM. How does the WSM rate = 130, 140 & 150gr compared with the 270Win?

    Any using TSX's in their 270WSM's. If so please tell.

  2. #2
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    Quote Originally Posted by 340Wby View Post
    Who here has actually chronographed the 270WSM. How does the WSM rate = 130, 140 & 150gr compared with the 270Win?

    Any using TSX's in their 270WSM's. If so please tell.
    Here's another way to compare it to the Winchester; it adds 10 grains to the 270 Winchester ballistics, all velocities are the same.
    Is there nothing so sacred on this earth that you aren't willing to kill or die for?



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    I doubt you will see any gains that are noticeable to any animal with the 270 WSM. What you gain with the 270 WSM is the ability to use a shorter action and have a slightly lighter rifle. To some people this is very important, to others it is not.
    Tennessee

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    I used some TSX bullets in my .270wsm. The only factory loads I can find are 130 grains, I would like to get some 150 grains, looks like I need to look into hand loading. As far as the performance with the 130 grain TSX, I killed a blacktail with a complete pass through shot from about 50 yards, from that distance any bullet would have worked.

  5. #5

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    I have not chrono'd any 270 WSM's. but everything I read (ballistic tables, articles, other shooting threads) shows a significant increase in performance over the Win, as in 250 fps plus. If I were getting a 270, it would be a WSM. JMHO

  6. #6

    Default 270 vs 270 WSM

    A few weeks back my buddy came over to zero his scope and I had my chrony set up. He was shooting a Tikka T3 270 WSM with 24" barrel. He had factory loads only, and shot six rounds. We didn't have much time...
    Federal Powershock 130 SP: 3308, 3284, 3284
    Winchester Ballistic Silvertip 130 gr: 3205, 3186, 3212

    As a point of reference, my Rem 700 w/24" barrel in plain old 270 Win:
    Hornady Light Magnum factory 130 gr Interbond: 3072, 3100, 3122
    Hornady 130 gr Interbond 62.0 gr H4831SC: 3100, 3108, 3115 <<< MAX in my rifle!!!

    When he shoots with me again I will chronograph some 140 and 150 grain 270 WSM loads and see how those compare with the regular 270 Win. I expect those will show a little more umphh over the 270 Win.

  7. #7

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    Hmmmm interesting. 100fps is not worth it over the old great! But a true 200fps is a different story.

    Please keep the info & comparisons coming

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    Default Flatter Shooting

    The WSM shoots a lot flatter than the Win. With the Win your looking at 16 inches of drop at 400 yards and 11 inches with the WSM.

  9. #9

    Default 270 wsm

    I used a winchester model 70 supergrade 270 WSM for all of my hunting in idaho for about 6 years. I shot 5 bull elk and 1 cow and 4 muley bucks with it using 140 gr TSX's. All of which were 1 shot kills and dropped at the shot or died within 50 yrds. I dont remember my exact load but it was CCI mag primers, and RL22 at somewhere about 3,200 fps. Sorry but its been a few years and I no longer have my reloading info on it since I sold that rifle to a fella for 1,300.00 back when winchester quit making them.
    Last edited by turner1978; 12-27-2008 at 16:14. Reason: add info

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