Cannuler is still visible when OAL is correct

[johndeeere1979]

i am new to the .223 reloading for my new ar-15 and i trimmed my cases to 1.750 and when i seat my bullets to the correct length (2.20the cannuler is still visible to get the cannuler in the neck all the way i need to seat the bullet to OAL of about 2.18 my question is which i better and will it hurt to have the OAL i .020 deeper

I am using M193 55gr. bullets with 26gr. of H335

thanks for the help
JR

 

[scrat]

leave it alone. dont worry about it. my guess is do to trimming of the cases. but dont worry about it. if you can crimp the bullet try that then as long as the bullet is not loose dont worry about it.

 

[mrawesome22-250]

.020 deeper

That's a .002" difference, not .020".

The cannuler doesn't need to be in the neck so far it isn't visible. Unless you are crimping these rounds, the position of the cannuler is irrelevant. Seat to what works best in your rifle.

 

[Uncle Chan]

Seat to what works best in your rifle.

Truer words cannot be found. Each rifle is different. For example, to get my 223 reloads to fit in the Mini-14 mag and feed properly, I need to seat them to < 2.15. My singleshot and bolt can both be considerably longer.

 

[rcmodel]

I am using M193 55gr. bullets

Where did you get the "correct seating depth" for GI surplus bullets?

Any other bullet would be slightly different, and the seating depth would be different.

If they are GI pulled bullets, or surplus M193, just seat them to the cannulure where they are supposed to be seated.

rcmodel

 

[johndeeere1979]

http://www.thehighroad.org/showthread.php?t=349497&highlight=m193

here under the M193.

 

[Ol` Joe]

As long as the round fits your magazine, feeds properly and was worked up at that OAL you will be fine. I would worry less about OAL variation then starting at a max load though.

You did work this load up, right?
Hodgdon lists 25.3 gr, Hornady 23.2, Sierra 27.5 and Speer 26 gr as max with 55 gr bullets. The variation in charges is likely due to the different bullet being used. Starting with a unknown surplus bullet and a near or top charge from a random data source isn`t the best way to begin.
just my $0.02

 

[steve4102]

This is from Accurate Powders web page.

SPECIAL NOTE ON CARTRIDGE OVERALL LENGTH “COL”
It is important to note that the SAAMI “COL” values are for the firearms and ammunition manufacturers industry and must
be seen as a guideline only.
The individual reloader is free to adjust this dimension to suit their particular firearm-component-weapon combination.
This parameter is determined by various dimensions such as 1) magazine length (space), 2) freebore-lead dimensions of
the barrel, 3) ogive or profile of the projectile and 4) position of cannelure or crimp groove

 

[30Cal]

I generally ignore cannelures. It's a blue moon when someone decides to put it in the right place (sometimes they'll vary too).