Started Load DEV 22-250/53g VMAX

Discussion in 'Reloading' started by benchracer, Jun 3, 2014.

  1. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    I completed the Berger seating depth test as the first part of load development for my 12 twist 22-250 using 53g VMAX's. The target shows a pretty dramatic seating depth preference:

    P1000343.jpg

    I improvised a bit on the seating depths I chose to test. I measured the actual distance to the rifling with this bullet @ 2.507 COAL, but wasn't sure that would leave enough bullet in the case. I decided to start the test at SAAMI max length (2.350") and work forward from there. The clear winner of the test puts the bullet just shy of .080" from the rifling @ 2.430" COAL.

    Now that I have established the preferred seating depth for this bullet in my rifle, I plan to do a powder charge runup with IMR 8208 XBR, CFE 223, VARGET, and RL-17.
     
  2. Salar600

    Salar600 Well-Known Member

    Messages:
    87
    Joined:
    Sep 16, 2012
    Thanks to share. I should do the same test in the near future but with 4064. I wasn't sure the 1x12 would have been enough for this long bullet.

    Your results are promising
     
  3. CB11WYO

    CB11WYO Well-Known Member

    Messages:
    554
    Joined:
    Nov 13, 2012
    Yup Yup I worked loads this winter for my buddy's 22-250 and the 53 gr V-maxs in a 1x12 "bone-stock" factory Savage Weather Warrior. It'll do 1" groups at 200 yds when all is right. If I remember we settled on 35 gr. Benchmark and about 0.010" off the rifling.

    Benchracer,
    What make/model rifle are you using?
     
  4. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    A 12 twist is easily enough for this bullet. I find that the plastic tipped 55's shoot better from a 12 twist than they did from a 14 twist as well.
     
  5. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    It's a sporterized Czech mauser '98 with a 26" 12 twist Shilen pre-fit barrel. I had the barrel installed last year and am just now getting around to working loads up for it.
     
  6. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    I completed load development with IMR 8208 XBR and the 53 VMAX's. Chrono data and groups @ 250 yards to come next week. Here is what the powder charge workup looked like:
     

    Attached Files:

  7. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    I completed a load workup using CFE 223, with ho-hum results. Later, I realized that I had assembled the test loads using standard primers. Given that CFE 223 is a ball powder, I should have used magnum primers. I will re-test using CFE 223 and mag primers. My results with CFE 223 and CCI 200's are shown below. Nothing to write home about...
     

    Attached Files:

  8. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    VARGET and RL-17 still to come...
     
  9. gohring3006

    gohring3006 Well-Known Member LRH Team Member

    Messages:
    3,549
    Joined:
    Mar 17, 2014
    Tag,
    I have several pounds of RL17.
     
  10. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    I just got back from the range. CFE 223 shot much better with mag primers. Varget shot well, too. RL-17 was the star of the day, however. It grouped in the high .3's to low .4's with two different powder charges!

    I still need to take and post target pics and get chrono data for the final loads. Based on previous testing to establish pressure limits, I am expecting 3900ish with RL-17 and the 53 VMAX from my rifle.

    Interestingly, RL-17 shot very well with 69 SMK's, too. It looks like RL-17 is going to be my go to powder in 22-250. I was not surprised to see it do well with the SMK's, but I am surprised that it outperformed Varget, CFE 223, and IMR 8208 XBR with the 53 VMAX's and did so by a fairly wide margin.
     
  11. greyman

    greyman Member

    Messages:
    20
    Joined:
    Dec 7, 2014
    I went back and reread your first post, and I have a question once you decided on a seating depth, how do you know that is the best for ALL powders and loads tested? not being a smart --- I would like to know cause that's where I usually go off the tracks with my load development?
     
  12. ntg

    ntg Well-Known Member

    Messages:
    570
    Joined:
    Mar 21, 2011
    What velocity did you get with the RL17 and the 53gr. Vmax?
     
  13. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    My own testing has demonstrated, to my satisfaction, that preferred seating depth is bullet dependent. I have also found that similar bullets will often show similar preferred seating depths, regardless of the powder tested.

    My best advice is to test this out for yourself. Choose a bullet to experiment with and perform the Berger seating depth test, using a starting load. Repeat the test with other suitable powders.

    As a control, seat your chosen bullet to book length, perform your powder charge workup with each powder you are using, then perform the Berger seating depth test for the best load with each powder.

    When seeking a definitive answer, a person can take the word of someone else (who may or may not be right) or test things out for one's self. IMO, testing is better. Hard data trumps opinion any day, my own included.
     
  14. benchracer

    benchracer Well-Known Member

    Messages:
    1,508
    Joined:
    Dec 18, 2009
    Here is a pic of the load development for the 53 VMAX with RL-17:
     

    Attached Files:

    mason3379 likes this.