Originally Posted by Freedom2live
Hi new to reloading , stupid question is I measure my 243 empty case and they all read 2.044 after shooting them. Later on I full length size them and they read 2.048. Stupid question is this normal
the book says 2.045 length is the standard ??. So I have to trim them down to standard right.. ? Am lost
You don,t have to trim as long as the neck chamber is longer.
I like to do a cerrosafe casting of the chamber unless I have the reamer that was used to chamber
Cerrosafe can be bought from Brownell's and re used many times. It can be melted with a hot air gun
or hot water.
After you cast the chamber you can measure the maximum neck length you can use. (It is
recommended that the case necks be .020 shorter than the neck chamber.
Another test is to take a the bullet that you use in your load and try to insert it in a fired case,
if it doesn't want to go the case necks are probably to long and must be trimmed .020 to .030 .
J E CUSTOM