Thread: Substituting projectiles

Originally Posted by JohnDuxbury

As someone who had never even heard of doing it three posts back, you have some strong opinions on how it wont work. Rest easy. It works fine. Listen to some people who have actually done it, and then you dont have to wonder. We can be your guides in this matter. People started doing this in the sixties with .303 ammo.

And I said remove the decapping pin, not the expander.

Not really strong opinions , I'm just cautious by nature when it comes to reloading . Especially when there is an unknown, such as propellant and pressures and the SST is a long bullet , that extra length has to go somewhere.
My previous suggestions of doing some form of load development is a combination of me being cautious and wanting to see the best results in the way of accuracy and consistency . The principles of reloading apply irrespective of chambering.

Yes you are correct , this process of pulling mil' spac' ammo and replacing the bullets is an alien concept to me , does that make me wrong to be want the OP to remain safe, perhaps its an English .thing. I'm sure a lot of people have done this without any problems .

I've reread the thread , I'm not sure where I got the idea the OP was using Lee dies , regardless the decapping pin is fixed in a Lee and if using something like the Hornady new dimensions dies , it may well engage the case body before sizing the neck . Given the mechanics of how a f/l die works it is possible for the cases to lengthen, though unlikely in unfired brass . Why am I wrong to suggest checking the cases still chamber , it's a few seconds that might save hours further on?

I never have a problem with being wrong , I often am and will openly admit to it if that's the case . . Me , I'm making suggestions that will hopefully help achieve a better end result and keep the OP safe and it is never wrong to promote safety. Try not to judge me too harshly , my posts are written with good intentions 

Regards