Chrome lined bores & forward assists

05-12-2002, 09:39 PM

I thought chrome lined bores were standard modern manufacturing methods used on all rifles made since WW2. Early AR-15 were reputed to not have chrome lined bores (Eugene Stoner didn't call for them, armorers in Viet Nam did...supposedly). Thus the call for the creation of the forward assist. Is this true ?. I like chrome lined barrels & forward assists. I would hate to find out in the middle of a firefight that my bore was not chrome lined. Am I blowing that out of proportion ?

05-12-2002, 10:14 PM

Yep

I remember when bolt assists came to be. Who cared about what was in the barrels. Just put the switch on rock -n- roll and pull the trigger!

MikeC · 05-12-2002, 10:44 PM

Hmm, Me thinks that many match barrels are not chrome lined. Remember that when the M-16 first was issued, there were several issues, not just a non lined barrel.

Klaus · 05-13-2002, 03:18 PM

The forward assist has nothing to do with chrome lined barrels, or lack thereof. It is there to rapidly clear jams caused by powder residue around the bolt and chamber.

05-13-2002, 04:21 PM

I still like chrome lined bores & forward assists...

MikeC · 05-13-2002, 09:46 PM

Have you checked the bores of your handguns? I don't know of any that are chrome plated. I seem to remember the reason the M-16 "needed" plating was the humid weather in Viet Nam and the type of powder used in the first original ammo.

05-23-2002, 06:00 PM

I've got plenty of humid weather down here....I live less than 15 miles from the Gulf.... 'sides I still like forward assists & chrome lined bores

alan c. · 05-23-2002, 06:24 PM

Chrome barrels--- maybe corrosive ammo ?? Foward assist---hummm maybe weak ammo. You think?

Rocklobster · 06-07-2002, 07:36 PM

Chrome-lined barrels were introduced in the military because their small arms are subjected to adverse weather conditions, as well as going for long periods of time(and many hundreds of rounds)between cleanings.

Chrome lining actually hurts accuracy because there is no way to control the thickness of the plating throughout the entire length of the barrel. This(of course)causes variation in the bore diameter, and makes the bullet do all sorts of weird things.

Check out the better quality AR-manufacturers' match barrels-you'll find they aren't chrome plated.

The forward assist was put on military guns for the same reason-dirty chamber, difficult feeding(not to mention the AR-15's inherantly poor gas system).

jerry · 06-08-2002, 06:10 AM

See above for most logical answer.

WyrTwister · 06-08-2002, 07:43 PM

Quote:

Originally posted by jerry
See above for most logical answer.

Chrome lined bore is a very good idea for a military rifle , where dependability may mean your life . The M14's had chrome lined barrels .

Many of the AR target barrels are SS .

If it will not close on a round , eject it ( if you can ) to not hit the forward assist and jam it tighter .

The chrome lined barrel is fantastic for corrosive ammo , like the AK or SKS . But I do not know of any .223 that is corrosive ( dirty , probably ) .

Wyr
God Bless

alan c. · 06-08-2002, 07:56 PM

And make sure you clean the bore after firing corrosive ammo. Had a friend of a friend who shot several rounds through his SKS and let the rifle set untouched for 2 weeks--well there was severe pitting to the barrel. For you guys that shoot black powder--same results.

Rocklobster · 06-08-2002, 08:13 PM

M14s had chrome-lined barrels, but eyeball a Springfield M1A-no chrome.

Always clean your gun after every shooting session, corrosive ammo or not. (Who in the world shoots corrosive ammo?)

alan c. · 06-08-2002, 08:31 PM

I have never shot corrosive ammo, but it used to be available at cheap prices--ok. Look-- forward assist was added to help out with lock up for the bolt with either dirty ammo or weak ammo. What can I say if you have ever shot a AR-15, then you know what I am typing about.

Klaus · 06-08-2002, 09:48 PM

The forward assist has nothing to do with weak ammo. Weak ammo causes ejection problems, not failure to lock. If the bolt retracts far enough to ejject the empty case, the springs have more than enough energy to chamber a new round, unless:
A. The bolt or chamber is badly fouled
B. The new cartridge is deformed
C. The magazine is deformed or improperly seated

alan c. · 06-08-2002, 10:08 PM

Oh really--that's funny If the ammo does'nt have enough umph! it wont slam the bolt foward enough to lock. Been there done that.
And no A.B.C is not an option.

alan c. · 06-09-2002, 07:12 AM

You know Klaus after sleeping on it you are correct. What the he** was I thinking. To many cervezas last night I guess. Just felt like arguing.:cheer:

FALPhil · 06-09-2002, 07:46 AM

I have seen chrome lined barrels (mostly Euro milsurp with a high probability of African service) on which the chrome has started flaking. Probably the result of being stored dirty and bimetallic galvanic action took over. Invariably, the accuracy was horrendous.

WyrTwister · 06-09-2002, 04:49 PM

Quote:

Originally posted by Rocklobster
M14s had chrome-lined barrels, but eyeball a Springfield M1A-no chrome.

Always clean your gun after every shooting session, corrosive ammo or not. (Who in the world shoots corrosive ammo?)

My M1A is the cheap model with a USGI Winchester chrome lined bore . The more expensive models have SS or CM steel commercial barrels .

I shoot corrosive ammo all the time in 8mm Mauser , 7.62 x 54R , 7.62 x 39mm , 7.65 mm Argie , 7.61 x 25 mm , 9 x 18 mm Mak , 7.62 NATO ( Indian ) , 6.5 mm Swede , and I can not remember what else .

No problem at all . Clean with anything that smells of ammonia . I use Shooters choice Copper Cleaner , for corrosive or non-corrosive .

Cleanbefore the sun goes down . :-)

Wyr
God Bless

WyrTwister · 06-09-2002, 04:56 PM

Quote:

Originally posted by Rocklobster
M14s had chrome-lined barrels, but eyeball a Springfield M1A-no chrome.

Always clean your gun after every shooting session, corrosive ammo or not. (Who in the world shoots corrosive ammo?)

My M1A has a USGI Winchester Barrel , chrome bore .

I shoot corrosive ammo , all the tome , in at least a half dozen calibers .

Clean with anything that smells of ammonia .

Wyr
God Bless

05-12-2002, 09:39 PM	#1
Logansdad Guest Posts: n/a	Chrome lined bores & forward assists I thought chrome lined bores were standard modern manufacturing methods used on all rifles made since WW2. Early AR-15 were reputed to not have chrome lined bores (Eugene Stoner didn't call for them, armorers in Viet Nam did...supposedly). Thus the call for the creation of the forward assist. Is this true ?. I like chrome lined barrels & forward assists. I would hate to find out in the middle of a firefight that my bore was not chrome lined. Am I blowing that out of proportion ?

05-13-2002, 03:18 PM	#4
Klaus Senior Member Join Date: Mar 2002 Location: Cypress, Texas Posts: 2,383	The forward assist has nothing to do with chrome lined barrels, or lack thereof. It is there to rapidly clear jams caused by powder residue around the bolt and chamber. __________________ "Gee, Wally, Eddie Haskel's mom puts out!"

05-23-2002, 06:24 PM	#8
alan c. Senior Member Join Date: Mar 2002 Location: Pasadena,Tejas - also known as Texas Posts: 3,767 Images: 15	Chrome barrels--- maybe corrosive ammo ?? Foward assist---hummm maybe weak ammo. You think? __________________ God Bless. From Tejas -- formerly known as Texas. Last edited by alan c.; 05-27-2002 at 09:51 AM.

06-08-2002, 06:10 AM	#10
jerry Senior Member Join Date: Mar 2002 Posts: 10,900 Images: 9 Blog Entries: 1	See above for most logical answer. __________________ I'm a down home back woods redneck

06-08-2002, 07:56 PM	#12
alan c. Senior Member Join Date: Mar 2002 Location: Pasadena,Tejas - also known as Texas Posts: 3,767 Images: 15	And make sure you clean the bore after firing corrosive ammo. Had a friend of a friend who shot several rounds through his SKS and let the rifle set untouched for 2 weeks--well there was severe pitting to the barrel. For you guys that shoot black powder--same results. __________________ God Bless. From Tejas -- formerly known as Texas.

05-12-2002, 10:14 PM	#2
Armorer Guest Posts: n/a	Yep I remember when bolt assists came to be. Who cared about what was in the barrels. Just put the switch on rock -n- roll and pull the trigger!

05-12-2002, 10:44 PM	#3
MikeC Member Join Date: Mar 2002 Posts: 96	Hmm, Me thinks that many match barrels are not chrome lined. Remember that when the M-16 first was issued, there were several issues, not just a non lined barrel.

05-13-2002, 04:21 PM	#5
Logansdad Guest Posts: n/a	I still like chrome lined bores & forward assists...

05-13-2002, 09:46 PM	#6
MikeC Member Join Date: Mar 2002 Posts: 96	Have you checked the bores of your handguns? I don't know of any that are chrome plated. I seem to remember the reason the M-16 "needed" plating was the humid weather in Viet Nam and the type of powder used in the first original ammo.

05-23-2002, 06:00 PM	#7
Logansdad Guest Posts: n/a	I've got plenty of humid weather down here....I live less than 15 miles from the Gulf.... 'sides I still like forward assists & chrome lined bores

06-07-2002, 07:36 PM	#9
Rocklobster Member Join Date: Mar 2002 Location: Georgia Posts: 64	Chrome-lined barrels were introduced in the military because their small arms are subjected to adverse weather conditions, as well as going for long periods of time(and many hundreds of rounds)between cleanings. Chrome lining actually hurts accuracy because there is no way to control the thickness of the plating throughout the entire length of the barrel. This(of course)causes variation in the bore diameter, and makes the bullet do all sorts of weird things. Check out the better quality AR-manufacturers' match barrels-you'll find they aren't chrome plated. The forward assist was put on military guns for the same reason-dirty chamber, difficult feeding(not to mention the AR-15's inherantly poor gas system).

06-08-2002, 08:13 PM	#13
Rocklobster Member Join Date: Mar 2002 Location: Georgia Posts: 64	M14s had chrome-lined barrels, but eyeball a Springfield M1A-no chrome. Always clean your gun after every shooting session, corrosive ammo or not. (Who in the world shoots corrosive ammo?)

06-08-2002, 08:31 PM	#14
alan c. Senior Member Join Date: Mar 2002 Location: Pasadena,Tejas - also known as Texas Posts: 3,767 Images: 15	I have never shot corrosive ammo, but it used to be available at cheap prices--ok. Look-- forward assist was added to help out with lock up for the bolt with either dirty ammo or weak ammo. What can I say if you have ever shot a AR-15, then you know what I am typing about. __________________ God Bless. From Tejas -- formerly known as Texas. Last edited by alan c.; 06-08-2002 at 08:40 PM.

06-08-2002, 09:48 PM	#15
Klaus Senior Member Join Date: Mar 2002 Location: Cypress, Texas Posts: 2,383	The forward assist has nothing to do with weak ammo. Weak ammo causes ejection problems, not failure to lock. If the bolt retracts far enough to ejject the empty case, the springs have more than enough energy to chamber a new round, unless: A. The bolt or chamber is badly fouled B. The new cartridge is deformed C. The magazine is deformed or improperly seated __________________ "Gee, Wally, Eddie Haskel's mom puts out!"

06-08-2002, 10:08 PM	#16
alan c. Senior Member Join Date: Mar 2002 Location: Pasadena,Tejas - also known as Texas Posts: 3,767 Images: 15	Oh really--that's funny If the ammo does'nt have enough umph! it wont slam the bolt foward enough to lock. Been there done that. And no A.B.C is not an option. __________________ God Bless. From Tejas -- formerly known as Texas. Last edited by alan c.; 06-08-2002 at 10:30 PM.

06-09-2002, 07:12 AM	#17
alan c. Senior Member Join Date: Mar 2002 Location: Pasadena,Tejas - also known as Texas Posts: 3,767 Images: 15	You know Klaus after sleeping on it you are correct. What the he** was I thinking. To many cervezas last night I guess. Just felt like arguing.:cheer: __________________ God Bless. From Tejas -- formerly known as Texas. Last edited by alan c.; 06-09-2002 at 07:15 AM.

06-09-2002, 07:46 AM	#18
FALPhil Senior Member Join Date: Apr 2002 Location: Occupied Confederacy Posts: 241	I have seen chrome lined barrels (mostly Euro milsurp with a high probability of African service) on which the chrome has started flaking. Probably the result of being stored dirty and bimetallic galvanic action took over. Invariably, the accuracy was horrendous.