case length ?

[captn-tin]

Friend of mine was given box of 5.56 brass that has been sized, trimmed, and primer pocket swaged. Case length measures 1.750. Loading manuals call for 1.760. This brass still good to go? Thanks in advance.

[Bumslie]

Yep. Perfect.

RIP Blitzburgh

[AandO]

Load em up............
.
1.750 is my target for case length when trimming 5.56/223

[baih777]

1.760 is max case length. 1.750 is minimum.
Read your book carefully.

[Divernhunter]

Trimmed correctly and good to go.

[captn-tin]

Thanks to all for your responses... Capt-tin

[the86d]

I started trimming mine a little short, after doing it by mistake for a while, as the Lyman trimmer broke. 2 loadings before next trim-minimum this way...

[17+1]

1.760 is max case length. 1.750 is minimum.
Read your book carefully.

This!

[kcstott]

1.760 is max case length. 1.750 is minimum.
Read your book carefully.

[AandO]

Some books don’t say minimum length.
I have a Nosler, Speer, Sierra, and Lyman manual and one or two just state length. No max no minimum just length. Which is also why it’s a requirement to have more than one book.

I purchased some SPEER 223 ammo that upon firing measured 1.35. I researched this and found the proper minimum to be the diameter of the bullet is the minimum seating depth. 224 for 223, .308 for 308 etc....

I sized this brass and was able to conclude that for 223 1.35 is the minimum length for achieving a proper hold on the bullet.

Since the pressures can and do change I reduced my load accordingly and used this brass for plinking fodder......

Going from memory here but I believe I never had to trim that brass....

[kcstott]

I purchased some SPEER 223 ammo that upon firing measured 1.35. I researched this and found the proper minimum to be the diameter of the bullet is the minimum seating depth. 224 for 223, .308 for 308 etc....

I sized this brass and was able to conclude that for 223 1.35 is the minimum length for achieving a proper hold on the bullet.

Since the pressures can and do change I reduced my load accordingly and used this brass for plinking fodder......

Going from memory here but I believe I never had to trim that brass....

What??
You talking four different dimensions, all we are discussing is case length. Not cartridge over all length, not seating depth.

And saying seating depth is based on bullet diameter, yeah,, no. Seating depth is chamber based and is determined by the accuracy of the load

[divingin]

And saying seating depth is based on bullet diameter, yeah,, no. Seating depth is chamber based and is determined by the accuracy of the load

I know what the guy's saying: quite a few places #recommend# a minimum of a diameter's worth of seating depth to ensure adequate bullet pull ("recommend" being the operative word here - I haven't seen anyplace say that you should never go below that.)

I disagree with that statement as a hard and fast rule though, given the other factors that affect bullet pull.

[AandO]

I know what the guy's saying: quite a few places #recommend# a minimum of a diameter's worth of seating depth to ensure adequate bullet pull ("recommend" being the operative word here - I haven't seen anyplace say that you should never go below that.)

I disagree with that statement as a hard and fast rule though, given the other factors that affect bullet pull.

Agreed, we are only talking about the possibility of the shortest case length. Not oal or anything else. For this very reason I used that short brass I spoke of for plinking only.

By no means was I suggesting trimming to that level nor did I mention anything about oal....

Guess pictures/diagrams: are needed for some?

[kcheung2]

I purchased some SPEER 223 ammo that upon firing measured 1.35. I researched this and found the proper minimum to be the diameter of the bullet is the minimum seating depth. 224 for 223, .308 for 308 etc....

I sized this brass and was able to conclude that for 223 1.35 is the minimum length for achieving a proper hold on the bullet.

Since the pressures can and do change I reduced my load accordingly and used this brass for plinking fodder......

Going from memory here but I believe I never had to trim that brass....

I think this post was meant for the other thread about neck tension?

[AandO]

I think this post was meant for the other thread about neck tension?

No Sir, it is in the proper place re case length. Case length does apply to minimum spec for neck tension and is tied in with how much neck a case has to grab/hold the bullet proper.

Guys, please stop reading things in my posted comments on this thread that are not there.

The OP had a concern about case length. I merely put out suggestions as to what would be the minimum and my experience with cases I encountered at what appears to be the minimum case length for 223 brass.

Again I'll state that 1.750 is my target length when trimming 223 brass.....

Peace?