Originally Posted by baydog
Hello. I recently asked the question about what everbody thought about crimping the neck to the bullet even though i am shooting a bolt action and not a semi auto or a lever action. I had a few people tell me they thought i needed to tighten up my neck for bullet seating when i ran the brass through the resizing die. When i set a resizing die i keep lowering the die down and watch the ring it leaves around the neck until i get to the bottom of the neck then thats where i lock the die at. How would i set the die or what would i do to tighten the neck up for a tighter bullet seat?...Thanks
Buy a FL bushing
die..and the appropriate bushing sizes per your application..its (FL bushing die) main purpose is to control "neck tension" which is what you are asking about if I read it correctly...however you will run into accuracy issues if your neck tension is too tight or too little...it will depend on what your neck measures with a loaded round..whatever that reads the standard agreed upon school of thought is use a bushing die that measures 2 thou less. For instance my 6br loaded neck OD measures .268..therefore I use a .266 neck bushing in my FL bushing die.
The easy way to tell how much neck tension your current die is making is measure a loaded rounds neck OD and then measure the resized die's neck OD...if its less than 2 thou its most likely too little tension. If 2-2.5 then Id leave it alone If its 3 thou or more you've probably got too much neck tension.