reloading rifle brass 1st time...

[ruger22]

Brand new factory brass in 45 70.
I do not yet have the tool for be burring the case mouth.

Is this necessary?
Could I carefully do it with a small round file.

 

[python357]

Double reply post..deleted by author

 

[python357]

Brand new factory brass in 45 70.
I do not yet have the tool for be burring the case mouth.

Is this necessary?
Could I carefully do it with a small round file.

Always better to deburr inside the neck of new or once fired brass. Makes seating the bullet a lot easier and permits a clean crimp on the bullet surface or in the cannelure.

 

[iceman2]

You could try the tip of a good sharp knife to ream the inside of the case mouth.May be slower than proper tool but better than I file IMO

 

[Boomer]

Don't be too aggressive deburring the case mouth when you have not trimmed the cases. When you trim the cases you must deburr the brass edge which has formed inside the case mouth. A new case can be chamfered slightly, but with a case which is to be belled, deburring is unnecessary. A straight wall case does not seem to lengthen as quickly as a bottle neck case, and often trimming is most useful to remove small cracks which sometimes form around the case mouth. The .45-70 accepts bullets easier if you bell the case mouth and this should be sufficient with new brass.