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  1. zenbiker

    Gunsmithing New Bolt Knob Machining Fixture from PTG

    Because I'm a rank amateur and that never occurred to me. I live for the tips I get from people who know what they're doing. That definitely would have helped reduce stress on the solder joint. Thanks, Killswitch. Sent from my iPad using Tapatalk HD
  2. zenbiker

    Gunsmithing Objective research on Barrel Break-in procedures

    It's my opinion that more barrels are ruined by cleaning rods than anything else. I only clean a new barrel every 10 rounds or if I see A LOT of copper fouling at the muzzle; then i use a foaming copper remover and let the chemicals do the work while I take notes in log book, double check...
  3. zenbiker

    Gunsmithing New Bolt Knob Machining Fixture from PTG

    This is probably old news to the pros out there, but for basement wannabes slaving over away in our spare time, I think Pacific Tool and Gauge has come up with a solution to a job I just hate to do: turning down stock bolt handles and threading them to accept oversize bolt knobs. Until recently...
  4. zenbiker

    Gunsmithing Headspacing Question on my .375 Chey Tac

    You know, everything seems to be working out well despite this (look at the leading edge of the cocking piece): The metal work done at Lawton, probably one of the last pieces ever to be done before they shut their doors, is some of the best I've ever seen. I took the barreled action apart...
  5. zenbiker

    Gunsmithing Headspacing Question on my .375 Chey Tac

    I tried to edit my original post but ran afoul of some sort of computer demon. In the picture you can clearly see marks on the shoulder of the round indicating where contact was being made. Sent from my iPad using Tapatalk HD
  6. zenbiker

    Gunsmithing Headspacing Question on my .375 Chey Tac

    Thanks, appreciate it. This is virgin brass, too; my experience is that the brass will shorten .0005" to .001" as the case expands to fill the chamber on initial firing. Just never had anything this big drag on a "factory" load before, so I want to be safe rather than blow up this gun - me, I'm...
  7. zenbiker

    Gunsmithing Headspacing Question on my .375 Chey Tac

    For the last few years i have been trying to cope with disability as a result of a spinal injury at the hands of a jiu-jitsu instructor by building, as I could afford, a .375 Chey Tac Rifle. I was originally going for a .408 CT, but Barney Lawton (that's how long ago it was) had just started...
  8. zenbiker

    Barrels: Good vs. Good but not quite as good

    I think you're right, Frank; my best Bing-Chi fails to come up with a current business for BlackStar. They were originally a project by the son of the owner of a business called DelStar, but as I understand, the business didn't make (enough) money for the old man despite the quality of the...
  9. zenbiker

    Gunsmithing Do I have a problem?

    I need a drink. Or eight. I called Dave Kiff at PTG about this bolt. I've dealt with Dave for 15 years or so and have always found him to be of the of the most honest, stand up guys to deal with. Still think so. He tells me to send the bolt back to PTG, which I did about a month ago, and...
  10. zenbiker

    Barrels: Good vs. Good but not quite as good

    Thanks, guys; I'm going to check into Broughton and BlackStar barrels. Good information to know. Sent from my iPad using Tapatalk HD
  11. zenbiker

    Cold Steel

    I have two folders with Tanto blades in AUS-9 steel, not 440 stainless. I've carried one in y right front pocket with a clip for over 10 years now. Its not assisted opening, but I've learned to draw and flick it open as fast as any assisted opener I've got. The hinge is strong, and the blade...
  12. zenbiker

    Barrels: Good vs. Good but not quite as good

    200 fps faster from the same length with the Broughton? Sent from my iPad using Tapatalk HD
  13. zenbiker

    Barrels: Good vs. Good but not quite as good

    Starting a new project, and I haven't bought a barrel in a long time. I've used Hart, Krieger, Obermyer, and a couple others. My favorite was the 17-4 steel barrel made by BlackStar back before the company was sold - it made the best 300 WinMag stick I ever shot. Stupidly sold it. I have...
  14. zenbiker

    Please explain how a bullet can "go to sleep" and get more accurate at longer ranges?

    I've been away from this thread for a while just because of so many other irons in the fire, but i ran across this video http://http://youtu.be/p32xmVXYLBk demonstrating various 3D printed shotgun rounds. Shot 5 is notable because for the brief time the round is seen in the super slo-mo...
  15. zenbiker

    5R 300winmag

    Scary accurate, Sierra 240 SMK seated .002 off the lands, 75 gr. Western Magnum, Winchester cases, Fed 210 M (not magnum!) primers, 2750 fps from my Remington PSS. Holds MOA, which, for a box stock Remington, is "scary" accurate to me, ' specially with me driving it... Sent from my iPad...
  16. zenbiker

    Suppressors SilencerCo two thumbs up!

    Agreed, and I mentioned this to Andrew. My Spectre II didn't have any warning labels on any of the packaging. It never even occurred to me that there might be an issue with the length of the adapter or muzzle threads. One of the weapons I ran into a problem with was my Colt AR 22 trainer with...
  17. zenbiker

    Suppressors ?? 2014. Precision 7.62 suppressor

    Yankee Hill Phantom, half the price, plus YHM has a mount that you will allow you to use it on .223. BTW, it is rated up to 300WinMag, and it significantly reduces the recoil on my Sendero. Definitely check out the Yankee Hill Machine Line. Sent from my iPad using Tapatalk HD
  18. zenbiker

    Suppressors SilencerCo two thumbs up!

    A while back I made a post about a problem I was having with my Spectre II suppressor. In a nutshell, the suppressor mount was about .020" longer than spec, causing crushing of the o-ring SilencerCo designed into the mount by to reduce carbon fouling of the threads. In my ignorance, I ran a...
  19. zenbiker

    Gunsmithing ADCO Firearmsj- Two Thumbs Up

    I sent my Armalite target upper to ADCO at the recommendation of another board member. I needed a threaded muzzle adapter and suppressor/brake installed and timed without shims. Turnaround was not much over a week and the work is great. Thanks, ADCO, and to anyone needing quality gunsmithing...
  20. zenbiker

    Gunsmithing Do I have a problem?

    Had a couple of PMs from knowledgable persons about the last actions Lawton produced. The original vendor wasn't getting paid and declined any more business; so Lawton used a local vendor. The upshot is that this vendor probably tried to time the cocking piece (which is NOT supposed to be a...
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