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  • M-Tecs's Avatar
    10-18-2020, 01:34 AM
    M-Tecs replied to a thread Cleaning up in Factory Rifles
    https://www.big45metalcleaner.com/
    2 replies | 237 view(s)
  • M-Tecs's Avatar
    10-17-2020, 01:48 AM
    M-Tecs replied to a thread Bolt pistols? in Single Shot Guns
    I have XP-100R in .223, 260 Remington and 35 Remington.
    15 replies | 632 view(s)
  • M-Tecs's Avatar
    10-16-2020, 08:02 PM
    I am not stating that the SAAMI chamber is the best for accuracy or even that is what CZ is using. Thats why I recommend a chamber cast. I am using the SAAMI chamber since it an easy too locate print of a 9mm chamber that does show what the actual...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-16-2020, 02:04 AM
    As to who case hardness barrels any of the barrels that are Melonite treated are case hardened. This is getting to be fairly common in both pistols and rifles. Same for Titanium Nitride surface coating that CZ is using on these. That is the same...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-14-2020, 11:39 PM
    I would start with a quality chamber cast or pound cast to see how it compares to a SAAMI chamber and what actually needs to be done. That can be found on page 27...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-14-2020, 08:15 PM
    The roll on the front indicates its a blank of some type. Could be a line thrower or some type of actuator.
    17 replies | 783 view(s)
  • M-Tecs's Avatar
    10-14-2020, 02:14 PM
    If the barrel is a CZ Shadows 2 it is not case hardened. Per CZ it is nitride coated. https://cz-usa.com/product/cz-shadow-2-black-blue/ Titanium Nitride (TiN) is a very hard surface coating applied to metals in order to improve the surface...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-14-2020, 01:08 AM
    Are you trying to increase the lead/throat length or increasing the chamber size? Some tight 9mm chambers won't accept .358" diameter bullets due to increased the brass size from the .358" bullet. Not sure we are all using the same terms. ...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-13-2020, 10:00 PM
    The a couple of reasons that a barrel would be that hard is it's Melonite treated, chrome plated or is a machine gun barrel with a Stellite liner. Carbide will cut Melonite treated barrels. Several issues with throating a chamber using a tool post...
    44 replies | 1099 view(s)
  • M-Tecs's Avatar
    10-05-2020, 10:25 PM
    I have mine mounted on an aluminum plate so it's easy to unscrew and turn the complete unit over.
    20 replies | 582 view(s)
  • M-Tecs's Avatar
    10-05-2020, 06:27 PM
    If you can get the marble to hit first it will set the primer off. The case head would rupture but the front half the the shotshell moved very little. I haven't seen it done since the mid 70's and I always kept my distance but the kid doing it...
    28 replies | 989 view(s)
  • M-Tecs's Avatar
    10-05-2020, 04:00 PM
    What you guys never taped a marble to the base of a 12 gauge shell and threw it to a concrete surface? One of the guys I grew up with in a small town did it all the time. Same for hitting a 22LR in a vise with a hammer during shop class. I never...
    28 replies | 989 view(s)
  • M-Tecs's Avatar
    10-05-2020, 02:03 AM
    The Navy also liked them for night firing since they had no muzzles flash. If I remember correct some had a two mile range. https://en.wikipedia.org/wiki/Dynamite_gun A dynamite gun is any of a class of artillery pieces that use compressed...
    10 replies | 462 view(s)
  • M-Tecs's Avatar
    10-03-2020, 07:36 PM
    The type of steel used in firearm barrels normally expands at about .000006" per inch per degrees. If the barrel starts at 72 degrees that is a 278 degree difference. 278 x .000006 = 0.001668" for an inch. On a .355 bore that would be around...
    20 replies | 788 view(s)
  • M-Tecs's Avatar
    10-01-2020, 09:17 PM
    Yes it's an HD-Military. We will both get bumped for discussion on a sale thread. I have two and it is what's claimed. https://dailycaller.com/2018/01/05/classic-plinkers-hi-standard-h-d-military/ https://histandard.info/trans/HD-MIL
    7 replies | 784 view(s)
  • M-Tecs's Avatar
    10-01-2020, 03:27 AM
    PM sent accepting offer.
    3 replies | 209 view(s)
  • M-Tecs's Avatar
    09-30-2020, 10:02 PM
    https://www.thefirearmblog.com/blog/2020/09/30/long-live-lever-gun-ruger/?fbclid=IwAR22KV3lf2O6PIW9CYnTfhIHKfSRPQXYd9kOQ8HBqDkvl4Lrm-GcPE3IdD4
    3 replies | 258 view(s)
  • M-Tecs's Avatar
    09-30-2020, 09:01 PM
    PM sent on package deal for combined shipping for all three listings.
    3 replies | 209 view(s)
  • M-Tecs's Avatar
    09-28-2020, 08:19 PM
    Saami case length for the 17 HMR is 1.064". The Saami case length for the 22 Winchester Mag is 1.055". The difference is .009". The 17 Winchester Super Mag is 1.200" case length with a larger body diameter. It started life as a 25 caliber blank...
    21 replies | 800 view(s)
  • M-Tecs's Avatar
    09-28-2020, 07:51 PM
    I don't use it for edible game but my Hmong friends love it with FMJ's for edible game. Like any cartridge proper bullet selection is paramount. The 17 grain V-Max are highly explosive the 17 grain hollow points less so and the FMJ's not at all. ...
    21 replies | 800 view(s)
  • M-Tecs's Avatar
    09-28-2020, 05:49 PM
    They did that with the last big panic. Most stated they will not do that again since after the panic they the market was so flat after the panic they lost significant amounts of money due to the increased costs of the expanded operations. That was...
    114 replies | 4758 view(s)
  • M-Tecs's Avatar
    09-28-2020, 04:12 PM
    My experiences with the 17 HMR are somewhat different. I have several all CZ 452's or 453's. I order ammo from Mid-South when it's on sale in 2,000 or 4,000 orders. A case is 2,000 rounds. Primarily used for shooting prairie dogs but I have...
    21 replies | 800 view(s)
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check