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30 Nosler and .454 Casull
Guns for men, not sissies.
Guns for men, not sissies.
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So, Fbarley, to answer your original question, NO, a Mossberg 142A won't chamber a .22 Mag.You can do it. You have to rechamber the gun as 22 mag cases are fatter and longer of course and the rim thicker. The .001" isnt the issue.
In an article Wiley Clapp wrote on the .44 Special, he claimed the formula he uses is to Square the velocity in F/S, divide by 450240, then multiply by bullet weight in grains.Ah, OK that makes sense.
Just to be super clear I'm going to tag @Fbarley and mention that none of what I said above was meant to negate earlier advice. Don't try it!
That said, if you want more velocity CCI makes some high-velocity .22 ammo that's pretty good quality:
Mini-Mag: 40 gr at 1235 FPS
Stinger: 32 gr at 1640 FPS
Velocitor: 40 gr at 1435 FPS
That should make the Velocitor the hardest hitting of the bunch if I have my math right. To give you an idea how it compares to 22 Magnum, their 22WMR weighs 40 gr and goes 1875 FPS. So not bad.
EDIT: I looked up the KE formula, and my guesstimation was off by a little.
Kinetic Energy in pounds / feet:
Mini-Mag: 135.444024358567
Stinger: 191.0748894962
Velocitor: 182.86464033816
So the winner is the Stinger. It doesn't look like much but at those lighter weights, it may be a noticeable difference. Unless the lighter bullet over-penetrates or makes a big mess, it should be the right one.
The formula, for those who wonder, is weight in grains times speed in FPS squared divided by 450437.
($weight * ($speed * $speed)) / 450437
You probably read that post before I updated it Monday with the KE numbers, then replied today. The cool part is that we have verified each other's math.In an article Wiley Clapp wrote on the .44 Special, he claimed the formula he uses is to Square the velocity in F/S, divide by 450240, then multiply by bullet weight in grains.
I've been using this formula for years and any calculated energies I've posted here were attained using that formula.
Seems to work...
Mini Mag - 135.503287136
Stinger - 191.158493248
Velocitor - 182.944651741
.22 Mag - 312.333422175
Perfect. If you shoot something that doesn't let you know the gun went off then you might as well shoot a .22Well, from a 475 Linebaugh perspective...
View attachment 1122277
Yes true but we need more noise and sometimes a 22 fall a little flat .Perfect. If you shoot something that doesn't let you know the gun went off then you might as well shoot a .22
It's nice to see an active forum, and I appreciate the time taken to reply. Regarding this question,So, Fbarley, to answer your original question, NO, a Mossberg 142A won't chamber a .22 Mag.
Does yours have the scope and is the flip down portion of the stock made of wood?
Point is. Its your gun. If your want to make it into a single shot 22 mag you can. Chamber reamer. Done deal. Personally I think its a lousy idea but its your gun.It's nice to see an active forum, and I appreciate the time taken to reply. Regarding this question,
1. Yes, it has the flip down pistol grip. Also, the strap anchors, and apparently the "T" bolt handle.
2. I acquired it as a package deal with a used Ruger 10/22, which at the time I thought was the small rifle for a wanabe rancher.
3. I've come to appreciate the 142A as a more historical gun and use it for dispatching injured or trapped animals. I was inquiring about using a 22 magnum round, because that is what the two mobile slaughter outfits I've used use. I don't know why. Apparently a 22 LR round will stun hogs and goats just as well. It's all new to me.
4. The Mosberg 142A is in apparently good shape, so I don't want to modify it unless there is simply a switch out chamber.
5. In the end, it has been educational. I appreciate the advice. If I want a 22 magnum, which i apparently don't really need, I'll just buy one.
Thanks!
When I saw your post, the KE numbers were already there.You probably read that post before I updated it Monday with the KE numbers, then replied today. The cool part is that we have verified each other's math.
I asked because I have one, too....hand-me-down from my dad and one of the guns I learned to shoot with.It's nice to see an active forum, and I appreciate the time taken to reply. Regarding this question,
1. Yes, it has the flip down pistol grip. Also, the strap anchors, and apparently the "T" bolt handle.
2. I acquired it as a package deal with a used Ruger 10/22, which at the time I thought was the small rifle for a wanabe rancher.
3. I've come to appreciate the 142A as a more historical gun and use it for dispatching injured or trapped animals. I was inquiring about using a 22 magnum round, because that is what the two mobile slaughter outfits I've used use. I don't know why. Apparently a 22 LR round will stun hogs and goats just as well. It's all new to me.
4. The Mosberg 142A is in apparently good shape, so I don't want to modify it unless there is simply a switch out chamber.
5. In the end, it has been educational. I appreciate the advice. If I want a 22 magnum, which i apparently don't really need, I'll just buy one.
Thanks!
Nice, Andy!Speaking of .22's and such....
Last gun show I went to , I traded for a 1946 dated Winchester Model 62A....its my new favorite .22 rifle....
Andy
Yep, I had a number for Feet per Minute and divided it by 60 to make it apply more easily to firearms. That may be what did it. I feel like our results are close enough this application.When I saw your post, the KE numbers were already there.
That is what prompted me to post my numbers, using the formula I mentioned in my post.
Apologies if my post seemed to defy yours. I didn't mean it that way. I just got excited when I saw someone else post about calculated energies....kind of my way of saying, Hey! I do that too! =)
I suppose someone smarter in math than either of us, would probably tell us we're doing the same calculation, only in a slightly different fashion and that's why the constants are slightly different.
I think our numbers are very close.Yep, I had a number for Feet per Minute and divided it by 60 to make it apply more easily to firearms. That may be what did it. I feel like our results are close enough this application.