Remington 700 LTR QUESTION

[Lor]

I own a Remington 700 LTR (Light Tactical Rifle) in .223 with the magpul stock and fluted barrel... I was wondering if shooting 55 to 62 grain 5.56mm orunds would damage the gun in any way..? Thanks.

[MongooseV8]

I wouldnt, not in a normal 223 chamber. The two cartridges are very similar but not the same. Some guys do, but you wont see the best performance your rifle can accomplish shooting AR15 ammo through it anyway. Get some Hornady or Nosler 223 ammo if you dont reload. Black Hills is another good option for a more budget target ammo.

[divingin]

Primary difference is throat length - 5.56 chambers have a longer throat. Off the shelf Rem's have a really long throat length (well, at least the 308's do. I don't have a Rem 223.) If yours does have a long throat, there shouldn't be much of an issue with shooting 5.56 ammo.

If you're worried about it, give Remington Customer Service a call and see what they say.

[MongooseV8]

Primary difference is throat length - 5.56 chambers have a longer throat. Off the shelf Rem's have a really long throat length (well, at least the 308's do. I don't have a Rem 223.) If yours does have a long throat, there shouldn't be much of an issue with shooting 5.56 ammo.

If you're worried about it, give Remington Customer Service a call and see what they say.

I can guarantee you Remington will say no way.

[LynnJr]

Why would Remington say no way on 55-62 grain bullets?

[Bigtwin]

LynnJr, they wouldn't say no to the bullet size they would say no to using the 5.56 round in a .223 Barrel, or chamber rather.

[LynnJr]

You have a shorter throat so you get a little more pressure and thus velocity but that's about it.
If I buy a 223 reamer with zero freebore and I buy a 5.56 reamer with zero freebore what's the differences?

[MongooseV8]

The difference is an additional 5k-10k psi.

Will it blow up a 700? Almost certainly not.

Will it put extra undue stress on the bolt? Almost certainly yes.

You can make your own decisions but were it my rifle theres now way Id shoot 5.56 through a normal 223 chamber. Especially if that chamber was a match or tight 223 chamber. But since its a Remington and they cut chambers the size of hallways its probably ok.

[LynnJr]

I would imagine with all the cheap surplus ammo on the market that more 5.56 has been shot in 223 than 223 in 223.

[ar15barrels]

If I buy a 223 reamer with zero freebore and I buy a 5.56 reamer with zero freebore what's the differences?

The difference is there are no standard 5.56 chamber reamers with NO freebore.
That would be a nonstandard (custom made) reamer.

[LynnJr]

In layman's terms a 5.56 with zero freebore would be a 223 with no freebore or the same exact reamer?

[xugz0212]

Why you wanna shoot 5.56 in a .223? I don't get it and I'm feeling sad for your rem 700

[ar15barrels]

In layman's terms a 5.56 with zero freebore would be a 223 with no freebore or the same exact reamer?

No.

Have you seen my 223vs5.56 reamer comparison?

http://www.ar15barrels.com/data/223-556.pdf