140gr Nosler Custom Comp.

[wb00757]

Does anybody know if the .264" 140 noslers have to seat deeper than say SMK's or Hornady ELD's? I have a .260 with a fresh match chamber but they are hitting the lands at 2.70" O.A.L.. Trying to figure out whats going on......

 

[Deleted member 10043]

CBTO or COAL

 

[wb00757]

Culpeper,
I am measuring COAL. I am thinking that it is NOT the bullets making this difference (I do not have any others to test right now though)

 

[wb00757]

Would I get a longer COAL with a 130gr ELD-M?

 

[Deleted member 10043]

Thought I had a box of Nosler somebody gave me but it is Hornady. I was going to measure in a .260. Sorry.

 

[padom]

That is extremely short. In my .260rem I touched the lands with 140 class bullets, specifically 140 Hybrids and 140 ELD-M in the 2.85 - 2.91" COAL range.

 

[wb00757]

yeah, i'm not happy with it... Ill just have to have my smith (Me) fix it... I used a match reamer from elk ridge. I wonder if I should just get a standard .260 reamer and try to lengthen the throat or try to use a throating reamer?

 

[Deleted member 10043]

Mine was done in 260 Ft. Bragg. http://www.snipershide.com/shooting/threads/260-ft-bragg-t-cross.6255211/

 

[newguy2k3v2]

I bought some 140 cc and yes they touch the lands much sooner than any other bullet I've checked across several rifles. I think they touched at 2.82 in a noveske creedmoor barrel.

 

[padom]

Creedmoor is going to touch much sooner than 260rem....not 2.70....

 

[newguy2k3v2]

I should have said that in my guns they seem to hit the lands .020-.030 sooner than 140 amax, eld, etc. Mine are creedmoor but it think that differential would mostly hold true in a 260, 6.5 saum, etc.

I don't have my notes in front of me for exact numbers.

 

[bobke]

Issue I’ve seen repeatedly with Nosler, notably with ‘seconds’, is variations in base to ogive measurements. Have an accurate load for a Bartlein 6.5 CM-41.5 H4350, but an old lot are .692 BTO and OAL is 2.795 at .020 off lands, another lot load at 2.82 to stay .020 off. All said, pretty decent potential for lot/lot variation, though they shoot well-under .75 5 shot groups, when properly sorted. Have found same with 123CC and 129 ABLR seconds. Prime is good to go, but would advise buying a bunch in same lot number if they shoot in your gun. Cheap-yes, but time is money as well if you need to sort.