My new AHR DGR in 404 Jeffery is in the way.....

Discussion in '.375 & Up' started by sandman0921, Apr 1, 2017.

  1. jacques smith

    jacques smith AH Fanatic

    Joined:
    May 25, 2014
    Messages:
    697
    Video/Photo:
    1
    Likes Received:
    546
    Sandman that is amazing. Happy for you. My personal search for 404J continues. Damn this forum costs me a lot of money. For the record my 375 Sako recoil is around 36 to 38. A 404 around42 my 400HH is like 54 and my 416 rigby is at 63 and my470NE is like 72. Excellent caliber choice. Enjoy
     

  2. Dr Ray

    Dr Ray AH Elite

    Joined:
    Apr 1, 2017
    Messages:
    1,841
    Video/Photo:
    13
    Likes Received:
    1,265
    Location:
    Cairns, Australia
    Buy one buy one
     

  3. sandman0921

    sandman0921 GOLD SUPPORTER AH Enthusiast

    Joined:
    Dec 13, 2014
    Messages:
    420
    Video/Photo:
    2
    Likes Received:
    539
    Location:
    Tennessee, USA
    Member of:
    SCI (Life), RMEF (Life), DU, NWTF, NRA (Patron Life), GOA, DSC (Life), WSF (Life), B&C Club (Sponsor Associate Member), USSA (Associate Member)
    Hunted:
    USA (GA, TN, AR, TX, FL, UT, NM, WY, MT, AK, IL, MO, IA); Canada (NWT, BC); Africa (Tanzania)


    tenor.gif
     
    spike.t and jacques smith like this.

  4. jacques smith

    jacques smith AH Fanatic

    Joined:
    May 25, 2014
    Messages:
    697
    Video/Photo:
    1
    Likes Received:
    546
    Evil Evil people on this forum
    Cheers jacques. By the way 3 days to wheels up (last laugh)
     
    cpr0312 likes this.

  5. sandman0921

    sandman0921 GOLD SUPPORTER AH Enthusiast

    Joined:
    Dec 13, 2014
    Messages:
    420
    Video/Photo:
    2
    Likes Received:
    539
    Location:
    Tennessee, USA
    Member of:
    SCI (Life), RMEF (Life), DU, NWTF, NRA (Patron Life), GOA, DSC (Life), WSF (Life), B&C Club (Sponsor Associate Member), USSA (Associate Member)
    Hunted:
    USA (GA, TN, AR, TX, FL, UT, NM, WY, MT, AK, IL, MO, IA); Canada (NWT, BC); Africa (Tanzania)

    Attached Files:

    jacques smith likes this.

  6. jacques smith

    jacques smith AH Fanatic

    Joined:
    May 25, 2014
    Messages:
    697
    Video/Photo:
    1
    Likes Received:
    546
    See EVIL. That square bridge is off the charts but I can’t imagine what the blonde would say as I break it to her gently that I traded her to Duke for a Mauser
     

  7. CTDolan

    CTDolan AH Elite

    Joined:
    Mar 16, 2015
    Messages:
    1,379
    Video/Photo:
    18
    Likes Received:
    1,174
    Location:
    Minnesota
    Wayne does excellent stocks...very, very tastefully done. Lots of class.

    The metalwork is obviously up there, too!
     
    sandman0921 likes this.

  8. sandman0921

    sandman0921 GOLD SUPPORTER AH Enthusiast

    Joined:
    Dec 13, 2014
    Messages:
    420
    Video/Photo:
    2
    Likes Received:
    539
    Location:
    Tennessee, USA
    Member of:
    SCI (Life), RMEF (Life), DU, NWTF, NRA (Patron Life), GOA, DSC (Life), WSF (Life), B&C Club (Sponsor Associate Member), USSA (Associate Member)
    Hunted:
    USA (GA, TN, AR, TX, FL, UT, NM, WY, MT, AK, IL, MO, IA); Canada (NWT, BC); Africa (Tanzania)
    I'm back to report on my load development for my AHR DGR CZ 550 Magnum Rifle in 404 Jeffery. It's taken me a while to get back to the range since I posted the results of my load development with the North Fork 0.423, 400 grain Semi-Spitzer (SS) Bonded Bullets (Softs). I've been working a lot, and it's rained a lot this spring, and I'm just getting around to it. Oh well....

    At the advice of the North Fork technicians, I targeted a reduced charge weight of 1.0 grains of IMR 4831 as a starting point for my loads utilizing the North Fork 0.423, 400 grain Cup Point Solids (CPS) which would have been 89.5 grains. I actually had a range of 88.0 grains to 90.5 grains (same powder charge as my softs) in 0.5 grain increments to play with. I loaded up several of the NF SS bonded bullets as a reference, and then for each charge weight with the NF CPS, I loaded up 3 rounds. I used a large sight in target at 100 yds with several aiming points, and for each point, I fired 3 softs, and subsequently 3 solids. I then went with the load with the closet POI between the 2 bullets.

    I'm happy to report that I think I found a winner. The targets pictured below were shot at 100 yds:

    IMG_0002.jpg

    For reference, the top left hole is the original cold bore shot from the rifle using my "soft" load. The 2 closet to dead-center/bullseye, are the other 2 softs. The small cluster of 3 bullets just above the bullseye to the top left, are the 3 consecutive shots I took with the "solids". The next closest "node" if you will, was interestingly the highest charge loads (90.0 grains). The target is below for that, and is still pretty darn good for a large bore, dangerous game rifle....

    IMG_0001.jpg

    The softs are in the center, and the solids in the top right. The groups were very tight for a rifle of this caliber, and even the POI between the softs and solids were plenty good enough for a minute of buffalo rifle.

    My final load recipe for the NF solids were as follows:

    Rifle: American Hunting Rifles Dangerous Game Rifle (CZ 550 Magnum)
    Cartridge: 404 Jeffery
    Case: Norma (fully prepped, annealed and FL resized)
    Bullet: North Fork 0.423 (400 grain) Cup Point Solid
    Primer: Federal 215 (Large Rifle Magnum)
    Powder: IMR 4831
    Charge Weight: 88.0 grains
    COAL: 3.610 inches
    Ogive Jump to Lands: 0.040 inches
    Crimp: Yes (Lee Custom Factory Crimp Die)

    Chronograph Data:

    Average Velocity: 2355 fps
    Extreme Spread: 1 (not a typo)
    Standard Deviation: 0.78
    Group Size: 0.56 inches
    Muzzle Energy: 4927 ft-lbs

    The other thing that I am happy to report is that with much warmer temps than my original load development for the "softs", the CPS loads showed no signs of increased pressure. Ambient temps originally when I shot my rifle with the NF SS Bonded bullets were around 45 degrees F with 40% humidity. It was also very windy with sustained winds in the 10-15 mph range and gusts of 20 mph. The most recent session had ambient temps of around 80 degrees F, with 60% humidity, but calm winds of 3-4 mph.

    Hopefully this load development data will help others shooting North Fork bullets in their 404 Jeffery, but per my usual disclaimer, what worked in my rifle may not work in yours, so be safe, be observant, and work up your loads slowly.
     

  9. PHOENIX PHIL

    PHOENIX PHIL AH ENABLER AH Ambassador

    Joined:
    Apr 15, 2009
    Messages:
    8,340
    Video/Photo:
    53
    Likes Received:
    6,035
    Member of:
    SCI
    Hunted:
    USA, S. Africa
    Awesome. I have a .404J needing attention and the NorthForks are my favorite bullet. Will try and duplicate your results.
     

  10. lwaters

    lwaters BRONZE SUPPORTER AH Elite

    Joined:
    May 20, 2011
    Messages:
    1,492
    Video/Photo:
    89
    Likes Received:
    1,169
    Location:
    Manhattan Kansas
    Member of:
    SCI
    Hunted:
    Texas,Namibia,Kansas, Missouri, Wyoming, Colorado, Idaho, South Africa, New Zealand
    That rifle and price can make me forget about a double really fast.
     

  11. Bill Bunn III

    Bill Bunn III AH Senior Member

    Joined:
    Jan 27, 2018
    Messages:
    66
    Video/Photo:
    6
    Likes Received:
    76
    Congrats on your new rifle it is absolutely beautiful and seems to shoot as good as it looks. I just got my first taste of a 404 Jeffrey and i must say someday i will hopefully own one. For now I must just enjoy shooting my Dad's. I will say a fine 404 is sure hard to beat.
     

  12. Southwind

    Southwind AH Senior Member

    Joined:
    Jun 21, 2016
    Messages:
    65
    Video/Photo:
    10
    Likes Received:
    96
    Location:
    Kansas
     

  13. CTDolan

    CTDolan AH Elite

    Joined:
    Mar 16, 2015
    Messages:
    1,379
    Video/Photo:
    18
    Likes Received:
    1,174
    Location:
    Minnesota
    The beauty? With the money saved a person could do A LOT of shooting!!!
     

  14. BeeMaa

    BeeMaa AH Fanatic

    Joined:
    Jun 11, 2017
    Messages:
    835
    Video/Photo:
    30
    Likes Received:
    656
    Location:
    Eastern US
    Member of:
    NRA Life Member, SCI
    Hunted:
    South Africa
    I'll be sending my 375 to Wayne for some work later this summer.
    He does amazing work, as evidenced by the pictures you have posted.

    Thinking my next rifle he will be doing the build from scratch.

    Beautiful rifle and a true shooter.
    Cheers and happy hunting.
     
    sandman0921 likes this.

  15. meigsbucks

    meigsbucks AH Fanatic

    Joined:
    Feb 5, 2011
    Messages:
    538
    Video/Photo:
    14
    Likes Received:
    454
    Location:
    Central Ohio
    Member of:
    SCI, NRA
    Hunted:
    Zimbabwe and Namibia
    All I have to say is WOW!!!!
     

  16. WAB

    WAB AH Fanatic

    Joined:
    Oct 8, 2015
    Messages:
    985
    Video/Photo:
    25
    Likes Received:
    1,523
    Location:
    Alabama
    Member of:
    DSC, NRA, SCI
    Hunted:
    Zambia, Botswana, Mozambique, South Africa, Zimbabwe, Scotland, England, Canada, Alaska, Ireland
    Impressive rifle, congrats!
     

Share This Page

 
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice