Results 1 to 5 of 5

Heavy 7mm Projectile Expansion Test for my 7x57

This is a discussion on Heavy 7mm Projectile Expansion Test for my 7x57 within the Reloading forums, part of the HUNTING EQUIPMENT, FIREARMS & AMMUNITION category; With my newly 18yo camera man still sleeping it off and the handbrake at Mass with the monster-in-law I was ...

  1. #1
    Code4's Avatar
    Code4 is online now AH Enthusiast
    Joined
    Feb 2009
    Posts
    422

    Member of SSAA

    Hunted Australia, Zimbabwe, RSA, NZ, UK.

    Code4 has no Articles
    View Code4's Photos

    Default Heavy 7mm Projectile Expansion Test for my 7x57

    With my newly 18yo camera man still sleeping it off and the handbrake at Mass with the monster-in-law I was left to my own devices this morning.

    I am looking for a 'soft' fast expanding heavy weight projectile for my 7x57. My rifle does not shoot light weight projectiles as accurately so I'm stuck with the heavy weights. Testing was done at a measured 100 yards and all penetrated.



    I also found an accuracy load with the 173 H-Mantels. Velocity would be in excess of 2,340fps.



    173 RWS H-Mantel

    It was the first to expand and is the same weight as the the original FMJ load that made the reputation of the 7x57. I was expectiong the nose of the projestile to shear off early, as it is designed to do but was hoping for a larger would channel.

    175 Hornady RNSP Interlock.

    This one performed exactly as I expected, possibly expanding a little earlier and the least of all three. It kept on penetrating and I assume in the 7x57 would be capable of taking any game out to the limits of it's trajectory with this projectile.

    175 Sierra SptBt

    A real surprise package, I was expecting this to be a lot tougher and designed for the larger magnums. Its exit hole from the test medium was explosive and in the 7x57 would be perfect for larger deer and antelope such as Kudu and Elk.

    175 Woodleigh PPSN

    I have field tested this round in the 7x57 on large camels and all achieved full penetrated (except for one frontal shot) and did not expand. It is better suited to the 7mm RM and would probably be better in the 7mm Weatherby and faster for the largest game.
    Attached Images Attached Images
    Time spent in Reconnaisance is never wasted.

  2. #2
    BRICKBURN's Avatar
    BRICKBURN is online now SUPER MODERATOR
    Joined
    Aug 2010
    Posts
    6,279

    Member of KZN Hunters Assoc

    Hunted Namibia (Otavi, Ozondjache) South Africa ( LP, KZN, NC, EC) Botswana (Ghanzi) Canada (BC, AB, SK, MB, Ont, PQ, NS) USA (MT, WA, SD, CA, CO, WY, KS, MN, NC, VG, UT, HI)

    BRICKBURN has no Articles
    View BRICKBURN's Photos

    Default

    Never though of using wet newspaper to shoot through before. Interesting idea.

    The damage from the Sierra, although not opening the soonest, is pretty impressive.
    I didn't ctach the FPS on that Sierra. Was it going faster than the Hmantel?


    By the way, thanks for the idea for testing.
    Practice whispering before you leave for Africa!
    A Legend in my own mind!

  3. #3
    DOC-404's Avatar
    DOC-404 is online now AH Elite
    Joined
    Jan 2011
    Posts
    1,109

    Hunted South Africa, Namibia, Angola, Botswana, Zambia, Zimbabwe, Mozambique and Poachers.

    DOC-404 has no Articles
    View DOC-404's Photos

    Default

    Excellent post, Code4, nicely done. I am a big Sierra fan and now you can SEE why. I hunt PG with hand loaded 250gr Sierra's from my cz .375 and have never had any problems with them. They are excellent on the big cats as well. A friend of mine dropped a Buffalo on the spot with a 300gr Gameking through the engine room, and the wound channel was almost unbelievable. They are super accurate in my .308 and .375 as well.

  4. #4
    Code4's Avatar
    Code4 is online now AH Enthusiast
    Joined
    Feb 2009
    Posts
    422

    Member of SSAA

    Hunted Australia, Zimbabwe, RSA, NZ, UK.

    Code4 has no Articles
    View Code4's Photos

    Default

    Sierra has all but been forgotten in the marketing hype of the super premiums. I used a 7mm 140 SptBt in the same 7x57 to take a 14 pt Red Stag in New Zealand in April 2011. Here is the entry hole angling towards the front right leg with the hide peeled off. It did not exit and the stag was dead on its feet and fell down hill. Range was 200 yards.



    Shooting wet paper is only that, shooting wet paper. It is a quick and easy way to make some kind of comparison and has usually confirmed most of my in-field observations.
    Attached Images Attached Images
    Time spent in Reconnaisance is never wasted.

  5. #5
    enysse's Avatar
    enysse is online now AH Ambassador
    Joined
    Jan 2009
    Posts
    5,194

    Member of Northeast Wisconsin SCI chapter, Lifetime member of NRA,RMEF

    Hunted Namibia, South Africa (East Cape, Guateng and Limpopo)

    enysse has no Articles
    View enysse's Photos

    Default

    Thanks for the post, Sierra bullets are very underrated.

Similar Threads

  1. 7x57 Owners....educate me
    By PHOENIX PHIL in forum Up To .375
    Replies: 28
    Last Post: 02-15-2014, 08:38 AM
  2. What Have You Killed with the 7x57
    By BARTFRNCS in forum Up To .375
    Replies: 11
    Last Post: 09-20-2013, 06:11 PM
  3. 7mm 160 Speer in the 7x57
    By Code4 in forum Up To .375
    Replies: 9
    Last Post: 06-18-2012, 11:05 PM
  4. Aussie takes a New Zealand 14 Point 7x57 Red Stag
    By Code4 in forum Hunting Australia & New Zealand
    Replies: 10
    Last Post: 04-12-2011, 04:00 PM
  5. Big bore projectile choice
    By GWH in forum .375 & Up
    Replies: 11
    Last Post: 05-07-2009, 07:53 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •