5mm remington?

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bowhhunterjeff

New member
Ive just been seeing the release of 5mm remington rimfire ammo and was wanting to know more about the caliber and rifles that its chambered for, Ive heard it bridges the gap between the 22 mag and 223. Is this true? Also whats the biggest critter this round could ethicaly take?

thanks for any info you can give me its very appreciated

jeff
 
I have a 5mm magnum rifle in 592 great little rifle had a 591 shot both types of ammo the old Rem stuff and the new 30gr. ammo I would not say that it is more powerful than the 22 magnum that would be like saying that the 7mm08 is more gun than the 308 or the .243 is more gun than the 250/3000. so I would put the old 5mm in the same class as the other rimfire magnums. The 5mm will work on coyotes at close range and fox and bobcats. And there are to new types of ammo out for the 5mm the stuff that was releaased 2years ago and now the new released 30gr. varmint ammo so actually 3 types of ammo if you count the old Rem 38gr. power lokt. and centerfire conversion if you might want to try that. ~Marco
 
The new stuff is loaded by the same company they are just using a more explosive bullet it looks like a true varmint round you can get it at "Ammunition to go" thats the name of the dealer that has right now. How do you like the the 30gr. Centurion? My 592 loves it! ~Marco
 
Marco- I have a super nice 591 that I picked up earlier this year. I had it for sale and then decided to keep it. I'm going to try mine for yotes this Fall. It's a very good shooter with the Centurian rounds.
 
Jksnvly, what Ive seen out of the 30gr. soft point HP in 5mm it works like a controlled expansion round and it should work great for coyotes shot a Red fox a couple of weeks ago with my 5mm at 60yds one shot droped him in his chicken house chicken stealing tracks! The bullet hit him in the shoulder and came ou the neck he never new what hit him. And don't sell your 5mm! That 591 that I had I sold with 11 boxes of the Remington 38gr. ammo and I kick myself for doing it. I'll never sell this tack driving 592 that I now have. ~Marco
 
The 5MM RF cartridge case is similar to but it was not derived by necking the 22 Magnum down to 5MM. The varying case rim dimensions can be seen below for the two cartridges.

22 Mag Rim diameter : .291 in (7.4mm)
5MM Mag Rim diameter: .325 in (8.3 mm)
22 Mag Rim thickness: .046 in(1.2mm)
5MM Mag Rim thickness: .050 in (1.3 mm)

In addition, the 5MM RF case is actually a beefed up bottle-necked RF case designed to handle the higher pressure of the 5MM which operates at a SAAMI maximum of 33,000 PSI versus the 22 Mag's 24,000 PSI SAAMI max pressure.

I don't have the numbers handy, but the 5MM RF has more muzzle energy than either the 22 Mag or the 17 HMR.

I have a Remington Model 591 rifle and I use the Steve Schroeder CF conversion utilizing machined 22 Hornet cases. This allows me to use the lighter factory 20 caliber bullets now on the market as well as my own hand swaged 20 caliber bullets.

-BCB
 
The 5mm have more energy than the 22 mag? Thats not true! I chronoed the old and new 5mm ammo and all of the 22 mag ammo thats ever been made and the 5mm does have more energy than all U.S. manufactures of 22 mag ammo but there is one 22 mag ammo that the 5mm doesnt have more energy its the old RWS 40gr.Hp or Fmy factory Spec of 2,040fps. this Rws ammo was droped by RWS in the early 80s all of the old RWS ammo that I ever chroned went well over 2,100fps. so saying the 5mm had more energy isnt exactley true. ~Marco
 
Yes it's true a 5mm does have more energey than a .22 mag.

30 grain 5mm has 352 ft pounds of energy at the muzzle

30 grain .22 mag JHP has 322

You chroned FPS which has nothing to do with energy.
 
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Originally Posted By: vahunterYes it's true a 5mm does have more energey than a .22 mag.

30 grain 5mm has 352 ft pounds of energy at the muzzle

40 .22 mag JHP has 324

You chroned FPS which has nothing to do with energy.


Sometimes don't ya' just feel like the Afflek duck....?
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Thank you vahunter for setting the record straight with some relevant data. Ah, the internet information highway...
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Thanks...

-BCB
 
FPS has nothing to do with energy?

You both need to go back to your basic physics course:

Ek = (1/2)MV2 Energy (kinetic) = 1/2 of Mass times Velocity squared

With that said, GENERALLY the 5mm remington Magnum has more energy than the 22Mag as it pushes its slightly lighter bullet significantly faster.

Also if you bothered to read some of the links provided, the information is readily available on energy, velocities and even some accuracy observations.
 
Originally Posted By: ChorizoFPS has nothing to do with energy?

You both need to go back to your basic physics course:

Ek = (1/2)MV2 Energy (kinetic) = 1/2 of Mass times Velocity squared

With that said, GENERALLY the 5mm remington Magnum has more energy than the 22Mag as it pushes its slightly lighter bullet significantly faster.

Also if you bothered to read some of the links provided, the information is readily available on energy, velocities and even some accuracy observations.

I never said velocity has nothing to do with muzzle energy. You're extrapolating folk's thoughts here so you can appear to be The Intelligence Saviour...

And I would venture to guess that vahunter probably knew the connection also, but he was simply commenting that FPS is not muzzle energy.

I made a decent living directly involved with physics in my life, so your simple formula is not new to me.. Actually, true energy involves a lot more variables than the ones in your internet savvy gun-related formula.

Muzzle energy as calculate using that formula is a somewhat nebulus number and not really indicative of all that goes into true energy calculations for projectiles. However, the formula works great for comparison purposes using the same variables to compare with....

I'm generally not too excited about what Chuck Hawks has to say, but I'm glad you provided that information for the masses...

-BCB

 
Easy guys, I've read this whole thread and it's all pretty straightforward. Vahunter was the one that said velocity had nothing to do with energy. I don't think he meant it the way it was written, but that's what was in his post. Most everyone here is familiar with the formula for bullet energy:

E = mV^2/450282

Where:
E= energy in ft-lbf
m = bullet mass in grains
V = velocity in feet per second

The 450282 is the conglomeration of the conversion factors and the rest of the formula.

So, velocity is VERY important as it is squared in the formula. This was sort of pointed out by BCB and he also expanded upon the fact that the formula is too simplistic but works well enough in this context.

Also, if you take what was said about chronographing the 5mm versus the .22 win mag, I would say the 5mm Remington almost always has more energy than the .22 win mag except for one type of ammo that hasn't been manufactured in twenty years.

I don't know that the 5mm has the edge up on the win mag enough to make me want to buy one but if I already had one I'd sure use it.

 
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Thanks, Bill, for elaborating a little bit further...

Just one thing. I know you knew what you were saying, but you might want to read the sentence that begins with "So" - third word. I'm sure it was just a typo.

I hope I'm not sounding like Chorizo by mentioning it, but I stumbled over that sentence...

Thanks again...

-BCB
 
Originally Posted By: Bill B.Thanks BCB I went back and changed it. I had muzzle energy on my brain and that's what my fingers typed.

I've been there, too, and I have several t-shirts to show for it..
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-BCB
 
Someone needs to chamber it in a new rifle. That could really bring the cartridge back from the dead.

I spoke too soon. How about a reasonably priced new rifle.
 
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Sorry BCB but a 40gr. bullet going at over 2,100fps has more energy thatn a 38gr. 5mm bullet going the same velocity! The RWS ammo I tested went 2,150fps. at 10ft. had to go back and check my records. Ive chronoed a bunch of the old 5mm ammo and never and I mean never got close to factroy spec vel. of 2,105! Muzzle energy for the RWS ammo is 391.6! And the RWS 40gr. bullet is .020 largerin dia than the 5mm and the RWS is a true jacketed bullet. You need to get your facts right story teller! ~Marco
 
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