Trimming cases shorter than recommended length

Tex S · October 30, 2009, 06:27 PM

Will trimming 270 win brass to 2.520" be detrimental to accuracy or have any other negative effects? I like to trim my brass to a consistent length before reloading for the first time, but alot of the pieces that I have are already at 2.523"-2.529". I want to make them all even, but I am not sure if trimming to 2.520" will create problems. All my manuals say trim to 2.530", so we are not talking about removing alot of extra material here.

flashhole · October 30, 2009, 06:33 PM

You won't have any problems but the short ones will grow with a few firings.

langenc · October 30, 2009, 07:15 PM

Unless you are crimping there is no reason to trim that short. If some are a few thousands short(of trim to length) , just load em and go. I wouldnt trim all to the shortest just to make em match.

October 30, 2009, 06:27 PM	#1
Tex S Senior Member Join Date: November 12, 2008 Location: Fort Worth, TEXAS Posts: 909	Trimming cases shorter than recommended length Will trimming 270 win brass to 2.520" be detrimental to accuracy or have any other negative effects? I like to trim my brass to a consistent length before reloading for the first time, but alot of the pieces that I have are already at 2.523"-2.529". I want to make them all even, but I am not sure if trimming to 2.520" will create problems. All my manuals say trim to 2.530", so we are not talking about removing alot of extra material here.

October 30, 2009, 06:33 PM	#2
flashhole Senior Member Join Date: February 9, 2005 Location: Owego, NY Posts: 2,000	You won't have any problems but the short ones will grow with a few firings. __________________ ,,, stupidity comes to some people very easily. 8/22/2017 my wife in a discussion about Liberals. Are you ready for civil war?

October 30, 2009, 07:15 PM	#3
langenc Senior Member Join Date: August 19, 2007 Location: Montmorency Co, MI Posts: 1,551	Unless you are crimping there is no reason to trim that short. If some are a few thousands short(of trim to length) , just load em and go. I wouldnt trim all to the shortest just to make em match.