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  1. MarkLeupold

    25 Creedmoor Load Development

    Yes, the seating die is just the 6 or 6.5 seater on these. You can get a 25 cal seating stem sometimes for your die, but from BlackJack's recommendation, it's not necessary.
  2. MarkLeupold

    Introducing the AI Obsession Chassis

    Damn, that's sexy...
  3. MarkLeupold

    Nucleus Light Primer Strikes

    https://www.longriflesinc.com/collections/products/products/mausingfield-fire-control-compression-tool Hmm, I was bopping around LRI's site tonight and found this by accident. Looks very familiar. For those of you looking for a tool to change springs, this looks like it.
  4. MarkLeupold

    new guy here

    And your recommendation? Personally if I was just starting out again, I'd grab an SWFA fixed 10x for like $200-300. Decent glass, perfect tracking (that's the key), a usable reticle, and just use that until I could save up for what I want. For the prices of used PST's now, I don't think they're...
  5. MarkLeupold

    new guy here

    The more information you provide, the better off you'll be. People will be better able to help solve your question and it typically keeps the "Hide Weathered" shooters from being sarcastic (you've met Spife :LOL:). With the mention of "Hide Weathered," grow a thick skin around here, cause you'll...
  6. MarkLeupold

    Nucleus Light Primer Strikes

    Those gloves are the bomb. Everything you need 'em to do and more!
  7. MarkLeupold

    Nucleus Light Primer Strikes

    Something using a vise was what I figured would be the easiest...helps to be able to use your body weight effectively.
  8. MarkLeupold

    Advanced Marksmanship Forend Grip technique

    A consideration must be made here for application. I've read the article before, and the writer is not following any of the fundamentals that are mainly advocated here on the Hide. Typically, we are looking to get straight behind the rifle, head vertical and relaxed, 90 degrees of trigger...
  9. MarkLeupold

    Nucleus Light Primer Strikes

    I need to do some experimenting with my Springfield over the summer, but how do CRF rifles function when they're a system (1903, M70, etc)? Do their internal magazines have extremely short lips? If so, how are the cartridges retained within the magazine?
  10. MarkLeupold

    Nucleus Light Primer Strikes

    I went ahead and ordered the 25 pound spring today and an egg bolt knob (just to make the cost of shipping somewhat worth my while). I've got a match pretty much the first week I'll have my rifle together (great idea, right?) and I want that end all, be all solution if it starts light striking...
  11. MarkLeupold

    Complete My Build

    I was going to do a Barloc too. Was really excited about it until I saw the POI issues. Kinda scrambled afterwards getting new parts ordered. Ended up going with a PVA barrel nut. Nothing special, no proprietary tools required. Just a standard 6-point nut that you can stick a common wrench on if...
  12. MarkLeupold

    Nucleus Light Primer Strikes

    Some theoretical numbers I've had rolling around in my head the last couple days... Remington 700 LA Nucleus 830gr 19# Nucleus 830gr 25# Nucleus 600gr 19# Nucleus 600gr 25# Effective Striker Weight 1016.4 gr 830 gr 830 gr 600 gr 600 gr Average Spring Force 22 lbs 19.6 lbs 25.8 lbs...
  13. MarkLeupold

    Gunsmithing AICS mag seats too deep

    Glad I'm not the only one experiencing this. If you have a DBM (I know the OP doesn't, but for reference) I've found increasing the depth into the stock at the front action screw and decreasing the depth (ie. shimming) at the rear action screw by about 20 thou each worked for me. I don't really...
  14. MarkLeupold

    Nucleus Light Primer Strikes

    The Nuke's dual cocking cams will help keep forces spread out and evened up, so it's got that going for it as well. I'm also working on some theoretical numbers on if the Nucleus had a lighter striker, just to see what kind of situation that would put us in.
  15. MarkLeupold

    Nucleus Light Primer Strikes

    It was late, don't really know where I pulled that momentum from. I'll update the table with the correct numbers. Good catch!!
  16. MarkLeupold

    Nucleus Light Primer Strikes

    Alright, the results are in! Shout out to @Kiba for getting me some numbers I needed to complete the Firing Pin Impact Studies whitepaper calculations. Remington 700 LA Nucleus 16# Nucleus 19# Nucleus 25# Accuracy International Effective Striker Weight 1016.4 gr 931.65 gr 931.65 gr 931.65...
  17. MarkLeupold

    Nucleus Light Primer Strikes

    Yep, it pretty much seems like it. This is my first custom action too, and I'm nervous about getting light strikes already and I haven't even shot it. If you call, they should ship out a spring to you. ARC's customer service leaves something to be desired, but Ted says they'll be working very...
  18. MarkLeupold

    Nucleus Light Primer Strikes

    I think Ted designed the action with low cocking force in mind first and foremost. The 16 pound spring was probably borderline (and I suspect ARC knew it would be), but in ARC's testing it apparently worked with everything up to No.34 and No.41 primers, so they figured it would be fine with...
  19. MarkLeupold

    Nucleus Light Primer Strikes

    And herein lies a problem. If we follow David Tubb's analysis paper, he puts very little (read: absolutely no) weight on momentum. He thinks that the faster striker will do the job better (the more powerful striker) as you do, even with a slightly lower spring weight. I'm working through his...
  20. MarkLeupold

    Nucleus Light Primer Strikes

    Correct. @ThePretzel energy may not change with mass of striker, but force will (as F=ma). What sets off primers, force, energy, or something else? EDIT: After some research, it seems that it takes enough energy applied over a short enough duration to set off a primer, so it may be more...
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