Trimming question?

[Sniper66]

I recently trimmed a bunch of .204 cases, all of which have e been shot 2-3 times. My manual says the maximum length should be 1.850" and the trim length 1.840". As I was measuring each case, some were 1.850 and some longer so I decided I would just trim the whole batch (500 cases) to 1.840". My question is, since the cases are now slightly shorter, should I change the load? That is, I have a great load worked up, so will the slight change in the case length have a significant impact on accuracy? I suppose a few test shots would be wise, but just wondering what your experience has been??

 

[The Bushmaster]

Change your load? No...If it's a good load the trimming will, more then likely, not change a thing.

 

[spitballer]

I always seat bullets up against the rifling in my bolt gun anyway so I have never felt the need to make any changes after trimming. FWIW I check case length every time I clean up a batch of 25 and trim each as needed, not necessarily at the same time.

 

[noylj]

The load pressure depends on the internal volume of the loaded case. Trimming has not changed that, unless you have changed you COL.