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So, I have an AMP (Annealing Made Perfect - https://www.ampannealing.com/ annealer and apparently neglected to buy a .223 "pilot" (spacer) for it. Does anyone have the dimension for this (#3 pilot)? I'd be happy to share dims from #11, 17, 18, 37... AMPs prices aren't out of line, but if I...

Here's where I join the "show me" state. I have heat treating ovens (well, down to one) and thermocouples (like the one in my oven) are no mystery. You muck with a piece of high-quality HSS and you're not getting back to the homogeneous hardness of the manufacturer. You can't quench the...

Nope, never. The blank is provided hard, and you can only muck it up from there. OK, it *is* steel, so you can screw up the hardness, but you'll never get back to as good as it was unless you have the same facilities as the foundry that produced it. Buy the hardness / temper you're after...

Man, I miss Gun Games... Other than buying G&A to read "Cooper's Corner", Gun Games was about the only worthwhile gun rag on the racks (back when magazine racks were a standard fixture). I'm ignoring Accurate Rifle et. al. as they were subscription only, and never seen on the rack... GsT

My favorite guide is "Audel's Machinists and Tool Makers Handy Book'. My copy is the 1941 edition, printed in 1950. Better suited to the home shop than Machinery's, imo. GsT

I use a mix, but for a tenon probably HSS About 3/4 of my cutters are HSS of one kind or another - All quality e.g. Rex aaa, Cleveland, etc. The import stuff is a minefield of uneven quality - some is great, some seems like mis-labeled 12L14... The time I spend grinding a cutter is worth more...

Ayoob is a boob, and has been for a long time. His imaginings (like those of many gun writers) have little to do with reality. Neither is shooting techniques nor his legal advice have had much merit. His heyday was in the 80's - and he's pretty much ignored these days. Yes, I am an 'old...

I'm reluctant to enter the "stopping power" fight, but c'mon... Riiiiiiigggggghhhhht... And modern 9mm is just as good as .45 ACP and modern .45ACP is just as good as .44 Mag, and modern .44mag is just as good as... ... .50 BMG... ergo, modern .380 is as good as .50 BMG." If you want to...

I assume you mean the recoil spring I've gone as light as 11# in a standard .45 (16-18# is typical) and while it changes the nature of the recoil, I don't think it really makes it worse. I have no experience particular to the micro-nine, but my experience with similar size guns is that they...

Here's the link... Here's a link: https://www.youtube.com/watch?v=DepUdOSf57g GsT

Lowe's and Home Depot Have vinyl caps in their "misc. parts" drawers in the hardware section. I can't swear that they have the sizes you need, but probably worth a check if you're in a hurry. Mcmaster.com would surely have them. GsT

Hi Butch, Any idea how such a determination was made? And what remains? Thinking aloud - the scope should be "air tight" and nitrogen is one of the larger molecules of those that constitute "air", but it's also easy to see how difficult truly sealing a scope could be, particularly through...

That's a philosophical question, rather than a technical one. In my opinion, yes. If you go to all the work of disassembling a scope, why not spend the extra $2 and replace anything else that's cheap and might deteriorate with time? Other folks might just give 'em a once over and if they...

Well, the part you care about is trapped in the scope. The rest is "waste". GsT

Nitrogen can be had at any welding supply. You can rent bottles, which shouldn't be prohibitive, but you're going to have to buy a regulator and that may push the cost beyond what you want to pay if you have no other use for it. If you have a friend that welds you might arrange to pay for a...

Purge with (dry) nitrogen If you work on optics, you should have a plan to purge them with nitrogen. What I've used (for some other optics, I have not worked on a scope yet) looks like a small sandblaster, but made entirely of acrylic, with gasketed holes for your arms. Place parts and tools...

Would you mind posting a link? There is also a book called "Guide to Riflescope Repair" by Dr. J.W. Seyfried that I've enjoyed. Probably not the ticket for your high-end scopes, but some good ideas to, as the author put it "buy 'em cheap, and fix 'em". GsT

Great idea! Looks like I've got another project... GsT

Iirc... I got my Deublin coupler on eBay for about $20 (that was some years ago). I don't let the barrel support it - it's supported by a plug in the back end of my spindle (my headstock is long, the muzzle end of the barrel doesn't protrude). I try to keep the muzzle attachment from exerting...

So as not to hijack Pete's barrel flush thread - Al Nyhus brought up the muzzle end of a flush system, so I thought I'd ask - "what do you (all) do?". I've never found a completely satisfactory solution. The last few I've done I turn a hose barb from delrin and couple that to the barrel and...