Centerfire and rim fire
Firearm & Gun Forum - FireArmsTalk.com > Gear & Accessories > Ammunition & Reloading > Centerfire and rim fire

Reply
 
LinkBack Thread Tools Display Modes
Old 08-01-2013, 10:23 AM   #1
Feedback Score: 0 reviews
 
Join Date: Jun 2013
Location: Huntington Beach CA
Posts: 28
Liked 4 Times on 4 Posts
Likes Given: 57

Default Centerfire and rim fire

Can someone please explain the difference to me, what is rim fire and what is center fire?

__________________

Bedside--- mossberg 500 w/00 buckshot and PDX
Night Stand --- Springfield XD 9mm

Gunslingerbarred is offline  
therewolf Likes This 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 08-01-2013, 10:25 AM   #2
10-32
FTF_SUPPORTER.png
Feedback Score: 0 reviews
 
mountainman13's Avatar
 
Join Date: Feb 2012
Posts: 11,525
Liked 2917 Times on 1718 Posts

Default

Picture worth a thousand words...

rim-center.jpg  
__________________

I don't need No stinking signature.

mountainman13 is offline  
6
People Like This 
Reply With Quote
Old 08-01-2013, 10:50 AM   #3
Feedback Score: 0 reviews
 
austin92's Avatar
 
Join Date: Jan 2013
Location: Indiana
Posts: 825
Liked 181 Times on 134 Posts

Default

Aside from the picture above explaining it all, rimfire will be your .22lr, .22wmr, and .17hmr. Common centerfire rifle cartridges would be .223 Remington, .308 Winchester, and 30-06 Springfield. Rimfires are not reloadable where centerfires are. Google/Wikipedia are your friend

__________________
austin92 is offline  
Gunslingerbarred Likes This 
Reply With Quote
Old 08-01-2013, 10:55 AM   #4
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 17,159
Liked 9508 Times on 4091 Posts
Likes Given: 1492

Default

Good pics. In rimfire, the rim is folded over to form a channel, and priming compound is put in the channel. On firing, the firing pin strikes the rim, pinching it, causing priming compound to explode. One of the first complete metallic cartridge was a rimfire.

Centerfire- priming compound goes into a small metal cup, placed at center of case head. Firing pin crushes priming material between the cup and a fixed anvil, making it explode.

And not to confuse you, but back in the mid 1800s, there were other priming systems- pinfire, lipfire, cupfire, Crispins, etc. They did not work out, and fell by the wayside.

__________________

What we have here is... failure- to communicate.

c3shooter is offline  
racer_x Likes This 
Reply With Quote
Old 08-01-2013, 11:01 AM   #5
Feedback Score: 0 reviews
 
cblowe13's Avatar
 
Join Date: Jan 2013
Posts: 583
Liked 82 Times on 59 Posts

Default

So why can't rim fires be reloaded?

__________________
cblowe13 is offline  
 
Reply With Quote
Old 08-01-2013, 11:24 AM   #6
Feedback Score: 0 reviews
 
clr8ter's Avatar
 
Join Date: Jan 2011
Location: South Central NH
Posts: 3,546
Liked 1104 Times on 734 Posts
Likes Given: 731

Default

You've already put a crush in the rim, which you can't fix, and how are you supposed to get the primer into the rim again? With reloadable center fires, (there is non-reloadable centerfire, too), the primer is a self contained unit, press out the old one, press in the new one, and reload.

__________________
clr8ter is offline  
 
Reply With Quote
Old 08-01-2013, 02:36 PM   #7
Feedback Score: 0 reviews
 
hiwall's Avatar
 
Join Date: May 2011
Location: Cleator,AZ
Posts: 3,386
Liked 763 Times on 487 Posts
Likes Given: 239

Default

Rimfires(larger calibers) have been reloaded in the past with mixed results. Wet priming compound is put in the case and then the case is spun to get the "primer" into the rim. A large rimfire case can be reloaded 2 or 3 times. Obviously sometimes the case must be turned to expose a "new" section of the rim to the firing pin. This is more difficult sometimes as some guns have dual firing pins(hit the rim in two spots at once).

__________________

Just walking on the edge of of my grave.

hiwall is offline  
 
Reply With Quote
Old 08-05-2013, 04:39 AM   #8
Feedback Score: 0 reviews
 
bigjim's Avatar
 
Join Date: Oct 2009
Location: Elk Grove Village, IL
Posts: 560
Liked 205 Times on 131 Posts
Likes Given: 164

Default

They can be reloaded, it is just too difficult and time consuming. You need to mix and apply your own primmer compound, apply and let it sit and dry. (very small amount) Then powder and bullet, crimp and you are done.

Jim

I don't remember seeing load data for 22 LR in any of the books, but I am sure it can be found.

__________________
bigjim is offline  
 
Reply With Quote
Old 08-05-2013, 01:03 PM   #9
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 17,159
Liked 9508 Times on 4091 Posts
Likes Given: 1492

Default

Quote:
I don't remember seeing load data for 22 LR in any of the books, but I am sure it can be found.

And you are not going to find it in a loading manual, for a couple of reasons-
1. No heel seated .22 bullets available
2. Powder used in .22 rimfires not for sale
3. Making priming compound is not only incredibly dangerous (says the guy with a Master Explosives Engineer's license) but unless you have a license to manufacture explosives, also incredibly illegal.

There ARE some kits that have a heavy, reusable brass case with a replaceable primer to allow shooting of older rimfire rifles (like the .41 Swiss, .56 Spencer, etc)
__________________

What we have here is... failure- to communicate.

c3shooter is offline  
2
People Like This 
Reply With Quote
Old 08-05-2013, 01:44 PM   #10
Devil's Advocate and Provocateur
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
TekGreg's Avatar
 
Join Date: Jul 2011
Location: Cincinnati,OH
Posts: 1,869
Liked 1336 Times on 700 Posts
Likes Given: 612

Default

Modern cartridges use rimfire priming for rounds so small that a removable primer would be impractical, i.e. .17, .22, .22 mag. The smallest centerfire primer would provide too much ignition for the small amount of powder in these smaller cartridges. The diminutive size also doesn't allow reloaders to experiment with different powders and loads. Even the smallest centerfire cartridges that can be reloaded, like the .25 and .32, are not popular to reload due to inability to improve performance.

__________________

.
.
“Malo periculosam, libertatem quam quietam servitutem." (I prefer the tumult of liberty to the quiet of servitude.). Thomas Jefferson

"All that is necessary for the triumph of evil is that good men do nothing."

-Edmund Burke, Loosely translated from Thoughts on the Cause of Present Discontents. (1770)

TekGreg is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Converting .32 rimfire to centerfire GNLaFrance Gunsmithing Forum 14 11-13-2012 02:09 PM
.22 centerfire hornet sniperjase General Rifle Discussion 12 02-15-2012 04:28 AM
First centerfire rifle? drugan General Rifle Discussion 10 01-15-2012 10:25 PM
Centerfire .22-250? novarman General Rifle Discussion 4 11-30-2009 03:15 PM