300WM Trim length

[dontstrokeme]

I know this has been covered before so just pm me please so I can delete the thread if nobody replies here.


Looking at my Sierra book and they say to trim the case to 2.610" but in the cartridge drawing it shows the brass length at 2.620"......Am I missing somthing? Which one do I trim to?

 

[jasonk]

Re: 300WM Trim length

I would guess they are having you trim a hair short so that it's got a little room to grow. You could trim to the longer length but if you've got a short chamber you might be trimming every firing.

That's why one is a "trim length" and the other is the spec for case length (as in, trim when you're longer than this).

 

[dontstrokeme]

Re: 300WM Trim length

Providing they chamber in my rifle smoothly I should have no worries?

If so you can delete this from the records....thanks Jason....want to buy a OD Green Houge?