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JockStalk

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Posts posted by JockStalk

  1. I have a factory remington SPS varmint with 1:9125 twist 24” barrel. 

    It shoots 105 amax well with N165 at just under 2900 FPS. 

    There is an itch I have to put a faster twist shorter barrel on it. Make it a bit lighter and a bit pointier for deer and vermin, plus able to lob out successfully to longer range targets. Would like to stick with 105Amax but stay versatile enough for 87g and 58gr vmax. Maybe even heavier dtac’s. 

    Would fast twist preclude the lighter bullets? Would shorter (18-20”) barrel be too slow for heavies, not just for deer legality but also range use? 

    Is the itch worth the scratch? 

  2. 1 hour ago, tackb said:

    sorry if I can't see it but what reticule is it and what elevation clicks ?

    My fault for not including - please see below from S&B, but Lapua had it right 👍
     

    Product Info for Schmidt & Bender Precision Hunter 4-16x50mm Riflescope
    The Precision Hunter 4X16 magnification 50mm with P3 reticle 947/P3PH is an outstanding long-range riflescope from Schmidt and Bender, equipped with a third turret parallax adjustment. At 4x, the Mil-Dot reticle with fine crosshairs and four posts allows quick target acquisition. At 16x, the Mil-Dots become visible and can be used for precise rangefinding, trajectory and windage calculations on this Schmidt and Bender Riflescope. The top-mounted BDC has 5mm (1/5" clicks) for quick adjustments to 500 yards. The windage adjustment also has 5mm clicks for precise sighting in. Please browse Optics Planet for the best in Riflescopes, Riflescope accessoriesand other high quality Schmidt and Benderproducts.
    Specifications for Precision Hunter 947/P3PH 4-16 x 50mm with P3 reticle:

    Weight: 27 oz.
    Twilight factor: 14.1/28.3
    Eye relief: 3.70"
    Click value: .280"
    Field of view: 24.9/8.4 ft @ 100 yards

    Features of Precision Hunter 947/P3PH 4-16 Magnification With 50mm Objective and P3 reticle:

    • Parrallax adjustment goes from 55yds to infinity without moving your eye from the scope
  3. 3262707D-9257-4319-B371-7A924F011E2C.thumb.jpeg.f78e1b150c549ea9af0a147113e3274f.jpegSchmidt Bender FFP 4-16x50 precision hunter in excellent condition.Superb schott glass, probably the most practical & bombproof 0-500m hunting scope there is. Slight marking to coin slot on elevation cap and slight marking to windage cap, all as per normal use and tracks flawlessly, overall vgc. Boxed, bikini covers & paperwork. New these are £1,550 but can’t find any available in the uk.
    Yours for £900 + cost of insured posted to UK address. 

    Advertised elsewhere. 

    3885FFB5-E106-4477-A47C-13B639DB0C5F.jpeg

     

     

    3262707D-9257-4319-B371-7A924F011E2C.jpeg

    3885FFB5-E106-4477-A47C-13B639DB0C5F.jpeg

    E4165313-D92A-4D7E-837E-044AD3C138AF.jpeg

  4. 1 hour ago, Big Al said:

    Sounds like very dangerous advice but it seems like something has been lost in translation, I cant imagine anyone seriously giving that advice, if they did then run away from them as fast as you can.

    Resizing a neck by 20 thou is changing a caliber entirely its not a normal reloading practise. If you resized your .243 brass down by 20 thou your bullets would no longer fit in the case. The force required to make them fit would be ridiculous and either the bullet or brass or both would most likely deform.

    Neck tension is the difference between the outside diameter of the neck after sizing and the outside diameter after the bullet has been seated. Normally re-loaders will aim for a neck tension value in the 1-3 thousandths of an inch range, Ive seen some powders prefer a little more but anything over 5 thou really isn't needed and standard reloading dies usually give around 2-3.

    That’s clear Al thanks for the info. 
    I’ve been reloading for 6 years and never come across anyone using an incorrect sizing die deliberately, hence the question. 
    No intention on my part to do this, unless several well experienced people were telling me it was some dark art of reloading I had yet to discover. 
    Always caution first for me, but if I come across something I don’t understand I’ll ask. 
    likely something lost in translation! 

  5. 9 minutes ago, Big Al said:

    It would have been useful to see pictures of these groups.

    All too often people are influenced with group size at this point in the load development and thats not the most important aspect, a stable POI over a number of charge weights is what your looking for. From there I would choose a powder charge based on the temperature the test was shot under and tune seating depth. I would have retested 44.2, 44.4, 44.6. 44.8 and 45.0 as its about fine tuning now, you powder looks stable and the bullets look fine in that barrel.

    Once you can identify your stable POI and the range of charge weight it covers you need to consider the ambient temps that you ran the test under. If you tested in say 15 degrees outside temp I would opt for a charge weight in the middle of the stable range, if it was 25 degrees I would be aiming for the higher end and if it was 5 degrees I would be looking at the lower end. This gives you room for temperature and in turn pressure/harmonic changes over the course of the year .

    Thanks Al - great information. 
    groups from left to right in centre of photo at 44.6, 44.9 and 45.2. Was 5 degrees warmer, full sun and wind around 10mph r-l. Five shot groups, was struggling to get comfy in the sun (unusual in Scotland....) and first shot from cold clean bore at 44.6 is marked at 12 o’clock above other 4. Circles are 1”
     

    1147AB9B-0EAB-4C7B-AA3D-81B13D60B2C5.jpeg

  6. 4 minutes ago, Re-Pete said:

    It is a VERY daft question, and would probably result in a split case neck or collapsed case shoulder. As already mentioned, if you did manage to seat the bullet, the resulting pressure spike could prove "interesting"...............have you done much reloading?

    Pete

    Cheers Pete, Good to know you think people who want to learn are daft. Do you get asked many questions by others less magnificent than you? 

  7. Am sorted with a chrono so that’s the next bit of tinkering to do. 
    tried 44.6/44.9/50.2 and the groups opened up at 50.2. 
    looks like sweet spot is around 44.6-44.9. 
    Thinking of using 44.6 and varying the seating depth at that load, see how I get on. Will put some over the chrono to see what that says. 

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