Ticks for loading a belted case

[Old Coach]

I need to start loading the 7mm Rem. Mag. and have not loaded for a belted case.
All brass will be used in one rifle.
Any tricks of the trade to share?
All help appreciated.

Coach

[AJ Peacock]

I ignore the belt and use the shoulder for headspace, just like any non-belted round. Otherwise, as you reload the brass repeatedly, they will have a tendency to stretch in front of the belt. This is due to pushing the shoulder back too much.

If you have a way to measure the shoulder to head length (like the hornady tools), it is an easy job to just touch the shoulder .001" or so and call it good.

AJ

[steve smith]

I would advise that you neck size for as long as the brass still chambers easily, then full length size to bump the shoulder back. This should give the longest case life and better acuracy than to full length size every time.
I anneal the case necks on all new brass then use a Lee collet neck sizer. This works very well for not over stressing the necks and giving very consistant neck tension. I can usualy load each piece 3-4 times before it becomes neccesary to full length size. Then the sequence starts all over. I have loaded some 300win mag brass some ten times before primer pockets got a little toooo loose! I've yet to loose one case to head separation.

[gbp]

i ignore the rim and the shoulder and load into the lands. fl size when it needs it to bump everything back to 'normal'. but i must admit i so not shoot a lot of belted mags. This is what has worked for me. your milage may vary

[mike33]

Be careful sizing you dont go to far. A lot of reloaders dont size a magnum properly.
mike

[boomtube]

A bottle necked case is a bottle necked case, size them to fit your chamber. A belted case is a bottle neck case, there are no tricks.

[30-06 boy]

i load a 300 wim mag. i neck size with lee collet dies. when the cases get "snug" in the chamber, i fl them just enough to get the bolt to"close" on them. i also anneaql every 5 shots.brass life extended this way.moderate loads will also extend brass life. jason