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March 8th, 2018

How NOT to Headspace a Barrel — Speedy’s Disturbing Discovery

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales
This barrel’s shoulder was 0.025″ off the action because Red Locktite had been used on the threads.

Gunsmith Thomas ‘Speedy’ Gonzales offered this interesting report about how NOT to headspace a barrel. Hopefully you never discover something like this…

“A good friend and customer sent this rig in for repair after FedEx damaged the rifle during inbound transport from another smith. After repairing the stock and rebedding it, I decided to re-polish the barrel to make the repair perfect. Well this just added insult to injury as the barrel did not want to come off. After a few choice words, the barrel finally broke free only to reveal something very disturbing. It seems the barrel had been ‘headspaced’ by using RED Loctite to hold it in place.” [Editor: That’s definitely NOT how barrels should be fitted.]

Speedy was not happy: “I hope the smith that did this sees the photos and realized what jeopardy he put my customer in or anyone who shot the rifle for that matter. When cleaned up, the shoulder on the barrel was over 0.0250″ (25 thousandths) away from the face of the receiver.” [Editor: That’s a lot in this business]. Check out the images below to see how much the barrel rotated further inward when cleaned up. The barrel spun in nearly another eighth-turn or more. Not good.

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Permalink Gunsmithing, Tech Tip 11 Comments »
March 8th, 2018

Rimfire .22 LR Penetration Tests Yield Surprising Results

.22 LR Rimfire drywall 22Plinkster penetration test

The .22 Long Rifle (.22 LR) round is widely regarded as a relatively weak cartridge with very little penetrating power. Compared to most centerfire ammo that’s certainly true. But the venerable .22 LR actually packs more punch than you might expect. A recent test by rimfire specialist 22Plinkster demonstrated that the little .22 LR has enough power to drive a bullet through multiple walls.

In this video, 22Plinkster tests two types of .22 Long Rifle ammo, seeing how far a .22 LR bullet will pass through sheets of 1/2″-thick drywall. He shoots CCI Velocitor and CCI Stinger ammo types from both a pistol and a rifle. The results may surprise you. Shot from a pistol, the CCI Stinger ammo penetrated Nine (9) drywall sheets. Out of the rifle, the CCI Velocitor Ammo passed through Eleven (11) sheets, while the CCI Stinger stuck in the eleventh board, after passing through Ten (10) sheets.

The rimfire ammo’s penetrating power surprised .22 Plinkster: “I was really surprised that [the ammo] went through as many [dry wall boards] as it did. I was thinking four, maybe five tops …” He points out that the rifle penetration of 11 sheets was “equivalent to five walls, maybe six walls. If you were shooting in your house, and you had 1/2″ drywall, it would go through five walls. Now, that’s pretty scary that a .22 Long Rifle could do that.”

.22 LR Rimfire drywall 22Plinkster penetration test

Permalink - Videos, Bullets, Brass, Ammo 5 Comments »