Recent content by Calamity

  1. Calamity

    help me decide.... keep 7mm STW alive or move on to different caliber??

    The least expensive solution would be to have a gunsmith set the barrel back and rechamber for 7mm Rem Mag which is available everywhere.
  2. Calamity

    Why you need to Understand Vista Outdoors and What They Own

    Given China's open acquisition of strategic US assets, and their monetary influence (held debt and outright ownership of farms, tech companies, pharmaceutical chains, energy producers, utilities, universities, banks, government, etc) We really need to form private manufacturing and supply coops...
  3. Calamity

    7mm PRC

    Does anyone know what technical criteria are used in design of the PRC cartridges? I assume it is for combustion efficiency, i.e., pressure curve, throat temp, etc., but it would be nice to know the details. Do they use a standard powder? Bullet mass to bore ratio? As for the gripe about the...
  4. Calamity

    7mm stw or 28 nosler?

    Some POV/bias qualification first: My first gun was a Mauser 95 in 7x57 (and it still gripes me that they won't load the cartridge to 62,000 psi with a Plus+P warning for old guns). I like the 7mm bore for several reasons, with historical/romantic ethos admittedly large, but for sound...
  5. Calamity

    What guns would you like to see in a gun raffle?

    Nice bolt guns, Winchester 70, CZ600, Ruger, Savage, FN Mauser, Weatherby Vanguard, in 280AI, 300WM, 6.5 PRC, 340 Weatherby, 375H&H. S&W EZ, CZ75, Walther PPK, SCCY, 9mm. S&W 629, Ruger Blackhawk, 44mag. Uberti Frontier 44-40, 45 Colt. SDS Imports-TISAS 45 ACP.
  6. Calamity

    Hand guns on bears

    A few years ago, NPS rangers were relocating a sedated grizzly, and the bear came awake mad just as they were unloading him from the bed of the truck. In those days, rangers carried .357's like the Highway Patrolman, or a smaller frame with at least a 3" or 4" barrel. Most preferred hot loads...
  7. Calamity

    Air Compressor - Piping for Gunsmithing Equipment

    I strongly recommend you use 1/2" or 3/4" steel pipe. PVC is not suited for pressurized gases, and can be easily damaged by someone yanking on an air line. Brass and type L copper is suitable for fittings and end piece nozzles, but not recommended for system piping. Regular galvanized sch40...
  8. Calamity

    Bullet RPM and performance

    Physics texts refer to spin as angular velocity, and describe what we generally think of as centrifugal force (force trying to shed the bullet jacket) as centripetal force. It's just semantics, but I mention it in case you want to dig into it, and find the nomenclature confusing. Given that...
  9. Calamity

    28 nosler

    If a full length barrel is the only option, then the only consideration is cost. Right now, Inconel 817 is available from Online Metals.com. A 1.25 inch OD round is $638/ft, so a 3 ft workpiece will run about $1800-$1900 depending on qty discounts. I believe a regular barrel maker can do the...
  10. Calamity

    28 nosler

    Barrel wear is a military ordnance issue for automatic weapons, and there is some unclassified research available. Links at bottom of post. I've concluded that the least expensive, most practical approach to lengthening the life of an overbore barrel burner would be to have your barrel maker...
  11. Calamity

    28 nosler

    Thanks. I will keep your offer in mind. And your suggestion.
  12. Calamity

    28 nosler

    This article may interest shooters concerned with barrel life: https://mssblog.com/2019/09/18/reloaders-corner-barrel-throat-erosion/
  13. Calamity

    belted cartridges

    In my opinion, belted cases make more sense than non-belted ones if case fit and alignment is paramount for accuracy. The belt does not get set back during reloading, and the case position in the chamber does not depend on the contact point of an angle interface that can be affected by lubricant...
  14. Calamity

    Belted vs. non-belted for accuracy.

    In my opinion, belted cases make more sense than non-belted ones if case fit and alignment is paramount for accuracy. The belt does not get set back during reloading, and the case position in the chamber does not depend on the contact point of an angle interface that can be affected by lubricant...
  15. Calamity

    28 nosler

    If this interest continues to grow, I will do some proforma leg work to see what a prototype will cost.
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