.303 British reloading...

[M94/14]

The FL die set contains the FL size die and the bullet seater die. The neck sizing die is normally sold separately.

Do you need a neck Sizer? That depends...With regards to the .303 cartridge, I use both the FL and NS dies depending on the chamber of the rifle. If the rifle has an excessively large chamber, then I find that FL sizing the cases more than 2 times, can often cause case head separation due to the extreme taper in the case body and the excessive amount of sizing involved. The brass has to go somewhere during the sizing process, and on the 303 cartridge it pushes it up towards the shoulder and neck, leaving it thinner around the solid head area of the case. Much of this is also due to most rifles chambered in 303 having some manner of headspace which stretches the brass just ahead of the solid head area during firing, thereby thinning it somewhat.

Here is where the Neck Sizer comes in; If you know you have a rifle with a large chamber, you will have better brass life if you neck size after the initial firing. I would suggest finding some small, thin rubber bands that just fit around the base of the cartridge case, just ahead of the rim. You place these on each cartridge, then when you chamber the round, it will keep it fairly well centered in the chamber for firing. The fired cases should come out looking more uniformly round afterwards. If you then just neck size these cases, and use them only for that rifle, you should have excellent brass life.

I use the FL die to initially size a brand new, or once fired case, then I use the above described procedure for firing, then neck size from then on.

Probably more than what you asked for, but hope it helps anyway.