Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Alpine Night Vision NZ


User Tag List

+ Reply to Thread
Page 1 of 3 123 LastLast
Results 1 to 15 of 38
Like Tree65Likes

Thread: .270 Projectiles Lagging Behind

  1. #1
    Member
    Join Date
    Jun 2019
    Location
    Tasman
    Posts
    506

    .270 Projectiles Lagging Behind

    Soon to take delivery of my first .270 and looking at available projectiles, the highest BC I can find is .536 for 145 ELD-X. That’s reasonable, but lags well behind the 6.5, 7 mm and heavier .30s. There can’t be any reason for this than underinvestment by manufacturers. Come on Hornady, Berger, Sierra etc, please try a bit harder for us .270 (and WSM) followers.

    Any advice out there regarding other offerings (not LRABs).

    Cheers

  2. #2
    Full of shit Ryan_Songhurst's Avatar
    Join Date
    Sep 2015
    Location
    South Island
    Posts
    10,305
    170 Berger hybrid hunting .662 (1:8 twist required)

    150 LR accubond .625

    140 cutting edge MTH .590

    130 cutting edge MTH .540

    145 eldx .536

    150 vld Hunter .531

    140 Berger classic Hunter hpbt .528

    150 interlock .525

    150 interbond .525

    How far are you trying to shoot stuff? All those projectiles (and plenty more) provide more than enough oomph when launched at 270 speeds for a very long way out.
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.

  3. #3
    Sending it Gibo's Avatar
    Join Date
    Feb 2013
    Location
    The Hill
    Posts
    23,471
    LRAB .625 my butt!
    Freezer, 300CALMAN and Mathias like this.

  4. #4
    Full of shit Ryan_Songhurst's Avatar
    Join Date
    Sep 2015
    Location
    South Island
    Posts
    10,305
    Quote Originally Posted by Gibo View Post
    LRAB .625 my butt!
    Shot mine out to 900yds using those values and was fine
    Shearer, mawzer308 and dannyb like this.
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.

  5. #5
    Banned
    Join Date
    Mar 2015
    Location
    North Canterbury
    Posts
    5,462
    The reason for the lower BC bullets is that the vast majority of 270's are 1 in 10 twist so anything more than 140gr is borderline to stableise
    300CALMAN, takbok, ChrisW and 1 others like this.

  6. #6
    Member
    Join Date
    May 2012
    Location
    Kaukapakapa
    Posts
    971
    270 the new ‘best caliber’ !
    I’m still struggling with this but loving shooting mine
    Moa Hunter likes this.

  7. #7
    Bos
    Bos is offline
    Member
    Join Date
    May 2017
    Location
    Blenheim
    Posts
    973
    Quote Originally Posted by Ryan_Songhurst View Post
    Shot mine out to 900yds using those values and was fine
    Was playing round out at farm a couple of weeks ago, just verifying rangefinder and dial-ups, at varying distances..
    So rangefinder values dialled in to my VX6 at 200, 300, and 400 yards were spot on. My mate then said that from the top of the terrace to the gong is 940 yds."See how good ya are"
    I set up with the bipod, dialled in 940 yds, first shot missed so allowed a little more for windage, and proceeded to hit the gong (300 x 300) with the next 3 shots.
    Nothing wrong with the .270 out to stupid distances, and this was with 145Gr ELD -X

  8. #8
    Member
    Join Date
    Apr 2016
    Location
    Rotorua
    Posts
    474
    Quote Originally Posted by Gibo View Post
    LRAB .625 my butt!
    Applied Ballistics (Bryan Litz) tested them at 0.569 G1 or 0.291 G7
    BC doesn't matter, until you need to dial

  9. #9
    Full of shit Ryan_Songhurst's Avatar
    Join Date
    Sep 2015
    Location
    South Island
    Posts
    10,305
    Quote Originally Posted by winaa View Post
    Applied Ballistics (Bryan Litz) tested them at 0.569 G1 or 0.291 G7
    The tested .591 BC is whats called a midrange or 200yd BC, most new bullets including the eld range are now publishing data from this testing to more accurately reflect the calibres they are shot from, they will usually also show a higher and lower number as a verified bc at a certain velocity. Most apps will allow you to enter all 3 numbers, the 150gr ablr I use(d) being .625 .569 and .531 which was bang on out to 900yds in my wsm
    Freezer, Shearer and dannyb like this.
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.

  10. #10
    Banned
    Join Date
    Mar 2015
    Location
    North Canterbury
    Posts
    5,462
    @Spitfire, why do you want to shoot a super high BC bullet ? If your rifle is for hunting then in all reality the 270 is a 400 metre gun to still have 1400 - 1500 FP energy at that range.
    I have just started with the 140 AB in my 270. Since buying those I discovered that Nosler makes a 140 gr Partition. Very likely that bullet would be the best hunting 270 projectile there is.
    If you go with a soft bullet like the ELD-X a lot of meat will be ruined and wasted. The balance is quick humane killing at all ranges combined with maximum meat recovery
    Remember a lot of the new high BC offerings are made for WSM's and not 270 Win
    Micky Duck likes this.

  11. #11
    Member Shearer's Avatar
    Join Date
    Sep 2013
    Location
    Tasman
    Posts
    7,033
    Quote Originally Posted by Spitfire View Post
    Soon to take delivery of my first .270 and looking at available projectiles, the highest BC I can find is .536 for 145 ELD-X. That’s reasonable, but lags well behind the 6.5, 7 mm and heavier .30s. There can’t be any reason for this than underinvestment by manufacturers. Come on Hornady, Berger, Sierra etc, please try a bit harder for us .270 (and WSM) followers.

    Any advice out there regarding other offerings (not LRABs).

    Cheers
    I found the 140gn Nosler ABs (MV 3000 fps) to be good killers in my 270win. You've always got your 30cal and 7mm magnums if you want to shoot a loooong way.
    Gibo and Moa Hunter like this.
    Experience. What you get just after you needed it.

  12. #12
    Member
    Join Date
    May 2012
    Location
    Kaukapakapa
    Posts
    971
    Quote Originally Posted by Shearer View Post
    I found the 140gn Nosler ABs (MV 3000 fps) to be good killers in my 270win. You've always got your 30cal and 7mm magnums if you want to shoot a loooong way.
    Or shoot a long way with the 270. By loooong way I mean 500

  13. #13
    Banned
    Join Date
    Mar 2015
    Location
    North Canterbury
    Posts
    5,462
    Quote Originally Posted by Freezer View Post
    Or shoot a long way with the 270. By loooong way I mean 500
    How much energy have you got at 500 ? Really, we need 1500 fp minimum for a Red Stag

  14. #14
    Banned
    Join Date
    Mar 2015
    Location
    North Canterbury
    Posts
    5,462
    Quote Originally Posted by Shearer View Post
    I found the 140gn Nosler ABs (MV 3000 fps) to be good killers in my 270win. You've always got your 30cal and 7mm magnums if you want to shoot a loooong way.
    I just fired the rest of my ladder up to 59.3 gr of SF with the 140 AB MV 2996 about an hour ago. Slight perimeter mark on case base, no heavy bolt but warming up.
    What was your load for the AB's @Shearer. I have used AB's in a 2506 and found them hard to drive fast with their thick tough jackets, but they do work well, so here's hoping for the 270

  15. #15
    Member Shearer's Avatar
    Join Date
    Sep 2013
    Location
    Tasman
    Posts
    7,033
    Quote Originally Posted by Moa Hunter View Post
    I just fired the rest of my ladder up to 59.3 gr of SF with the 140 AB MV 2996 about an hour ago. Slight perimeter mark on case base, no heavy bolt but warming up.
    What was your load for the AB's @Shearer. I have used AB's in a 2506 and found them hard to drive fast with their thick tough jackets, but they do work well, so here's hoping for the 270
    60gns of N560 in Norma brass. 24" barrel.
    Moa Hunter likes this.
    Experience. What you get just after you needed it.

 

 

Similar Threads

  1. Double posts lagging posts
    By Ryan in forum Questions, Comments, Suggestions, Testing.
    Replies: 23
    Last Post: 21-01-2018, 09:46 PM
  2. 308 projectiles
    By Tuckerbox in forum Projectile and Factory Ammo Exchange
    Replies: 2
    Last Post: 19-08-2017, 05:03 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!