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  1. MarkLeupold

    Anyone need simple parts made?

    I had the same experience with him. Made some custom pillars for a 3D printed DBM prototype for me. Parts came back very precisely machined in a very timely fashion. He's a legit dude.
  2. MarkLeupold

    Threading Barrel Causes Expansion of Muzzle

    I've seen this concern brought up before, especially on .30 caliber rifles. Personally, I'd like to leave as much meat on the muzzle as my barrel taper allows. The problem you run across going to a larger thread diameter is finding brakes or suppressors threaded for something like 3/4"-24...
  3. MarkLeupold

    25x47 Lapua

    That's like 1200 yards. I'm about 350 short on my longest range right now. I just need the BC to get me on target 850 and in right now. It was on waterline all the way to 665.
  4. MarkLeupold

    25x47 Lapua

    Guess I'll throw my real-world load in here. 25x47 Lapua 131 gr BlackJack ACE - 20 thou off lands - 2.81" OAL Lapua 6.5x47 brass 40.9 gr H4350 - 2886 fps 23" X-Caliber barrel I've got 80 rounds total on the barrel right now, might get a little more speed out of it with a few more rounds...
  5. MarkLeupold

    American Rifle Company New Archimedes Action, New Xylo Chassis, and major Mausingfield revision

    Let us know how those new bolt heads feel. I want to exchange mine, but I don't have a "problem" with it. I just want a little better feel on close.
  6. MarkLeupold

    Nucleus Light Primer Strikes

    If it will be shouldered, yes. 1.2" will work.
  7. MarkLeupold

    Advanced Marksmanship Forend Grip technique

    I beg to differ. The isosceles, c-clamp grip is extremely taxing and you can't stay in that position for any decent amount of time comfortably. Look at the guys actually playing in the sandbox (a kill or be killed scenario) with their vertical grips midway down a 9 inch handguard or gripping...
  8. MarkLeupold

    Nucleus Light Primer Strikes

    Got home and put my Nucleus together today. Installed the 25 pound spring right away. I'm not even going to mess with the 16 pounder. Everything today has gone bang (about 30 rounds so far) with CCI 450's. The bolt lift is not bad at all, especially with the egg bolt knob I put on (which I now...
  9. MarkLeupold

    SOLD: 6.5mm 130gr Norma GT

    SPF
  10. MarkLeupold

    SOLD: 6.5mm 130gr Norma GT

    Partial box, about 358 of them. SOLD: $100 shipped CONUS I can post pictures if you really want to look at bullets, lol
  11. MarkLeupold

    Nucleus Build Pictures

    Mine will bind with MDT's and AI's. Need to try my ARC and see. It looks like the feed lips are a shorter height, so it'll probably be fine.
  12. MarkLeupold

    Nucleus Build Pictures

    I don't think that the MDT mags will have problems with the Nucleus. Typically a three lug action has a 6:00 lug and not a 12:00 like the Nuke. That being said, does anyone have problems with mags interfering with the bolt when weight is placed on the magazine? I think the Nucleus is very...
  13. MarkLeupold

    Rifle Scopes Zero Compromise Optic update

    What's the lowdown on scope caps for this and the 527? Specifically looking for the Tenebraex caps...
  14. MarkLeupold

    25x47 Lapua

    Mine is a 23". Hopefully I'll be able to put it together and do load dev over Easter weekend. Probably going to end up running H4350, but I also have a fresh pound of Varget if I want to test that as well.
  15. MarkLeupold

    1 shot vs 3 shot OCW (finished load)

    I'm very interested about the 2% theory. I've seen something about it in other places, so I'll keep an eye on it when I work a load this summer and report back.
  16. MarkLeupold

    1 shot vs 3 shot OCW (finished load)

    So you're looking for a consistent POI across groups to find where the "node" is?
  17. MarkLeupold

    Nucleus Light Primer Strikes

    I've also seen a video where you just push the cartridge into the chamber with your finger. I'll try to find the reference, but I would think that would give you great feel for finding the lands. Works similarly to the Wheeler method. I was going to give it a try on my Nucleus.
  18. MarkLeupold

    Match load question; go with it or back off?

    I would do this with at least a few rounds. Feel the bolt lift, look for more pressure signs. If you don't see any, I'd call it good.
  19. MarkLeupold

    Match load question; go with it or back off?

    The Nucleus is SFP. To the OP, is the cratering happening with lower charges too?
  20. MarkLeupold

    25 Creedmoor

    That's what I'm doing. Figured if I was building my first custom I should pay a few hundred more than I had planned and get what I want. I'm not sure that PVA has a 25x47 reamer, only seen the 25 Creed on their site. I had mine done by Greg at Bugholes. He's got the reamer I went in with him on...
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