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I'm looking for .22LR barrels that would be well-suited to "home-building" a single-shot, locked-breech gun without advanced machinery (i.e., no lathe or mill). (Yes, it's legal if it's not transferred or sold.) I think a barrel with standardized male threads on the chamber end would be ideal...

I've been searching for a database of primer colors and surprised I can't find one. I know that manufacturers can change colors, so one shouldn't rely on this to ID a primer of unknown provenance. But still could be useful for reverse-engineering loads and historical reference. Here's my...

I have lists by density and burning rate, but am wondering if anyone has a list of retail powders that indicates the type of each -- whether flake, ball, or extruded? Also how strongly do people agree with these generalizations? 1. Ball powder fouls significantly more than extruded powder. 2...

Is there a win-win to be had in the RKBA battle? For the purposes of this hypothetical discussion let's imagine that the anti-RKBA interests would like, more than anything, to see another magazine-capacity ban. Is there some concession on existing restrictions that you would accept in...

I'm working on my AUG trigger pack, which consists of a plastic sear with numerous sticky contact points against a trigger box made of the same plastic. What would be the most durable means of lubricating those plastic-plastic contact points? I'm not experienced with plastic bearing surfaces...

I only want to invest in one system for terminal ballistics testing. Can anyone recommend between Perma-Gel and Bullet Test Tubes?

Places like this sell loaded incendiary ammo but don't reveal their sources. So who is manufacturing incendiary bullets and where can a reloader buy them?

I was wondering whether Hornady's "highly progressive" Superformance propellant was code for "blended" propellants. I finally got my hands on a box of new Superformance .308 165gr SST. I pulled one apart and here is what I found: COAL = 2.74" Bullet length = 1.27" Bullet is very tightly...

I am looking for the heaviest bullets that will stabilize at subsonic speeds (say 1000fps) in my 1:9 twist .223 and 1:10 twist .308 bbls. Presumably this would be a flat-base bullet with a blocky profile -- something like a typical "dangerous game" hammer -- that packs as much mass into as...

Other than the fact that this may be patented, why isn't the standard revolver configured with the barrel at the bottom of the cylinder instead of at the top? Especially with concealed-hammer designs? (If you want the hammer exposed I suppose it might take some extra engineering to get it to...

What is the purpose of the square block above the bullseye on targets like this?

For all the discussion of the perils of reduced loads, and speculation on the ability of smokeless powder to detonate in a cartridge, I think we can finally settle this issue: I got an excellent dissertation on the subject when I recently called Hodgdon and talked to one of their technicians...