Short throat?

[laker415]

So I'm a bit confused about what I'm seeing with a newly installed barrel in 6.5 creedmoor. This is my first attempt at installing a barrel myself. I used go and no go gauges.

The issue I'm seeing is when I use my hornady oal gauge to find the lands for some bullets I want to use.

For a 120 grain hornady eld match, the book oal length is 2.710". That gives me an ogive measurement of 2.203". When I use my gauge to find the lands I keep getting 2.044" to the ogive. That is a huge difference. From what I can tell I couldn't even load factory ammo in this chamber without aggressively jamming the bullet into the lands. It seems really wrong as the appeal of this cartridge is loading it long and right now it's ridiculous how short they need to be. Same story with the 140s.

I emailed the barrel manufacturer to see what he says. But I also wanted to ask you guys. I attached a picture of a round loaded to book length vs a round I adjusted for my chamber with a .010" jump.

 

[guntech]

If the throat is a short as your picture indicates, you will need someone with a throating reamer to cut the throat longer to fit your dummy round...

Personally I would not cut it to the maximum but maybe 50 or 60 thou shorter and seat 50 or 60 thou deeper... as the barrel wears you can chase the rifling for a longer time and maintain the best accuracy longer.

 

[Leeper]

From whom did you get your reamer, or was this a pre-chambered barrel? The round on the left looks closer to standard 6.5 CM throat length. Take a fired, unsized, case, dent the case mouth, then use the rifle to seat a bullet and show us what you get.