Archive for the 'Firearms' Category

Okay we’ve covered this before.

So there is yet another post about magazine springs and whether they should be replaced, and if so, when.  This is in the same theme I wrote about several years ago when there was another little flurry of articles and posts about this.  I’m going to cover this ground one time for everyone.

Metal creep is caused from slippage of crystalline structures along boundary planes, whether FCC, BCC, or whatever.  One reader writes that “springs don’t wear out from compression.”  This is along the same lines as most of the [mistaken and incorrect] articles I linked the last time I addressed this issue that claimed that stainless steel doesn’t creep below the yield limit.

Do you know any piano tuners?  I do.  Yea, they have to go back a few days later and retune because of metal creep.  But most piano wires are carbon steel under high stress.  What about stainless steel?

Do not make the claim that stainless steel (like SS304) doesn’t suffer creep below the yield limit and at low temperatures.  Yes … it … does  (“In all tests at applied stress/yield strength ratios above 0.73 some plastic deformation was recorded”).

No offense, but don’t try to be an engineer if you’re not one. If you make the claim that SS304 (I presume the material of most magazine springs) doesn’t suffer from metal creep, you’d be wrong, and then you’d also be answering the question the wrong way.

The right way to look at the question is one of whether the creep is significant.  It usually isn’t, and it is less significant than for carbon steel.  It’s also not significant for applied stress/yield strength ratios lower than what the authors tested.  Where your specific magazine spring falls in this data set is best determined by the designer, not me (I don’t have drawings or any other design information).

Stop saying that it’s only the compression / decompression cycle that puts wear on springs.  Stop it.  Just stop.  That’s not true.

It … is … not … true.

It’s true enough that the compression / decompression cycle is fatigue wear, but it’s also true that this means slippage of the crystalline structures just like metal creep.

Again, the question is whether this creep is important under the specific design circumstances or not, whether the specifications are challenged or not.  It’s not about whether creep will occur.  It does, and it will, even if undetectable by you.

I’m not saying here that it’s a bad idea to leave your buffer spring compressed.  I’m not saying that it’s a bad idea to leave your magazines full of rounds.  Don’t misunderstand what I’m asserting.  I’m not even asserting that Brownells was wrong in their conclusions, even if they didn’t do all of the necessary analysis to properly arrive at their conclusions.

I am asserting that the justification for whether you do or don’t leave springs compressed has nothing whatsoever to do with whether the spring undergoes a compression / decompression cycle while it’s in the configuration it’s in.

It has to do with a materials and structural engineering analysis that most people don’t do (and probably don’t need to do), and which Brownells didn’t do for the video above.

This may sound like a nit, but not to an engineer.

As I’ve said before, I’d find Ryan interesting if he was talking about watching paint dry for 1.5 hours.  I didn’t intend to watch this entire video, but I did anyway because so many important questions were answered and so many salient issues were addressed.

First, he does a great job of shooting at that distance.

Second, as long as you get the holdovers rights, or otherwise adjust the scope for ballistics, the Marlin rifle is accurate and the cartridge looks like it would be effective.

I’d like to see ballistics gel evaluated at that range.

We’ve panned this gun as the wrong choice for all the wrong reasons, and I still believe that.  However, Tim Harmsen apparently likes the gun a lot.

We’ve covered this before.  Softer metals can wear down harder metals if they make contact long and vigorously enough.  And he tells you so again in the video.

Source.

More than 58% of firearm owners stored at least one gun unlocked and hidden, while nearly 18% of firearms owners stored at least one firearm unlocked and unhidden, the study found.

The study found that gun safes were the locking device most commonly used among firearm owners, rather than other locking mechanisms researchers examined, like cable locks and trigger locks.

Nearly 50% of respondents who didn’t lock their firearms said locks are unnecessary, while more than 44% of respondents said that locks would prevent quick access in an emergency.

They act like this is some sort of great revelation, something worthy of an article or a “study.”  I could have told them that, almost down to the numbers.  In fact, I suspect these numbers are a bit low.

It’s a revelation to them that if you put a lock on a firearm or store it away in a safe, it’s not accessible to you in exigent circumstances.  You know, exigent circumstances – the time when you are most likely to need that firearm.

What good is a firearm if it’s locked?

Sure, it might be a great idea to lock them away with small children in the home, and there are biometric safes for that, but we oppose efforts to legally mandate such things.  The FedGov isn’t God, regardless of how much they want to be.

I don’t have to worry about this since I NEVER put metal to my BCGs.  I only use cleaners and nylon brushes.

With that said, I think it might be nice to get the gauges he mentioned.

I just found out about these guys last night. The video has only one of them in it. Their humility is encouraging. They have the willingness to admit ignorance and seek necessary knowledge. They don’t have a catalog of videos yet, but they’ve indicated more to come.

A list of gear used in the video is here on the Dirty Civilian page.

Richard Mann writing at F&S.

• 30-30 Winchester
• 357 Magnum
• 44 Magnum
• 45/70 Government
• 360 Buckhammer

[ … ]

The 30-30 Winchester and the 30/06 Springfield are often considered the two most iconic American rifle cartridges. They’ve withstood the test of time. But they’re not the oldest or the most versatile. The 45/70 was introduced in 1873, 21 years before the 30-30 and 33 years before the 30/06. Originally designed for the Trapdoor Springfield, the 45/70 gained its current fame in the lever-action, and it is arguably the most popular lever-action rifle sold today. By modern standards, original 45/70 ballistics are pathetic. Modern 45/70 loads are not. And when all the 45-70 loads are considered, you have what might be the most adaptable big game cartridge of all time.

There are essentially three power levels of 45/70 ammunition, which is a trait no other centerfire rifle cartridge can claim. Power-level-one loads replicate the cartridge’s original ballistics and launch a 405-grain bullet at about 1300 fps. Inside 75 yards they’ll work for many big game animals. Second-power-level loads are generally loaded with a 300-grain bullet and pushed to about 1800 fps. They can generate more than 2000 foot-pounds of muzzle energy and are sufficient out to around 200 yards for non-dangerous critters. And finally, there are the third-power-level 45/70 loads. These can generate more than 3500 foot-pounds of muzzle energy—with recoil to match—and are sufficient for spy balloons or any beast walking Earth.

He also discusses the other cartridges, including one of my favorites, the .44 magnum.

I always enjoy reading Richard’s work, but my goodness it seems way, way premature to include 360 Buckhammer in that list.  It’s brand new, and in my opinion will end up being a flash in the pan.  Basically it doesn’t really do anything that the 30-30 can’t with the heavier loads (e.g., I have both 150 gr and 170 gr sitting on my desk in front of me now, and ballistically, it’s not really proven that the 170 gr does any better than the 150 gr.).  It’s parent case is the 30-30, just with a heavier bullet.  It’s also not proven that the .35 Remington does any better than the 30-30.  I just don’t think there’s a void to fill with the 360 Buckhammer.  Prove me wrong with ballistics analysis.

But let me tell you where I think there is a void.  Between the .44 magnum and the 45-70.  The perfect cartridge to fill that void is the 454 Casull, and I have written both Henry and Marlin begging them to introduce a rifle chambered in 454 Casull.  Apparently, my protestations have been to no avail at this point.

Anyway, I expect 350 Legend to wane in popularity, and I don’t expect wide availability of the 360 Buckhammer.  It may be an item of interest at some point (“Wow, I haven’t seen one of those in a long time, it may be a collector’s items at this point”), but it remains to be proven.

The 30-30 will never go out of style or off the market, and there will always be a high demand for either a new release by Marlin or a legacy JM stamped 336 in 30-30.

But I demand that Marlin introduce a Model 336 in .454 Casull.  I’ll buy two immediately upon release.  And I’d be happy to write about 20 articles on a new 336 in .454 Casull for Marlin if they send me a prototype.

As I’ve said, I could listen to Ryan Muckenhirn talk about boiling beans for hours and never get bored.  I watched every minute of the video (it’s a long one).  But lever actions guns are almost always unique, are historic, are a distinct part of Americana, come from a much better time in history, were designed by the very best mechanics and craftsmen America had to offer, are still viable and useful today, and still (in many cases) carry the wood stock and beautiful furniture you would like to turn over to your children and grandchildren.  Jim said it near the end when he said he got into lever guns when he sat back and thought one day when he hands his children his weapons, “Here, offspring, here is this really special firearm …,” and then thought, I have no special firearms.  So he bought lever guns.

They’re beautiful, classic, nostalgic, fun to operate, can still put meat on the table, and it’s no wonder there is such a resurgence in interest in lever actions guns and the cartridges they shoot.

I’d like to have a much larger collection of lever action guns than I do.  I’ll tell you someone who had a gigantic collection of lever action guns: Jeff Quinn of Gunblast, whom I miss.