The Firing Line Forums - View Single Post - Crimp necessary for 30-30 reloading?

kraigwy · February 15, 2009, 11:53 AM

I have never crimped 30-30s or any other rifle bullet (excluding cast bullet loads).

I've never had a problem.

My question is: Why would a relatively low recoiling bullet like a 30-30 require a crimp to keep the bullet from moving under recoil and a a heavier round dosn't. How many rounds have you see move forward in the mag well, and why would a tubular mag be any differant.

If you're dies fit, meaning you get the proper neck tention, the crimp is not necessary.

An exception would be with compressed loads, where the powder can and does expand after loading, pushing the bullet out.

February 15, 2009, 11:53 AM	#6
kraigwy Senior Member Join Date: June 16, 2008 Location: Wyoming Posts: 11,060	I have never crimped 30-30s or any other rifle bullet (excluding cast bullet loads). I've never had a problem. My question is: Why would a relatively low recoiling bullet like a 30-30 require a crimp to keep the bullet from moving under recoil and a a heavier round dosn't. How many rounds have you see move forward in the mag well, and why would a tubular mag be any differant. If you're dies fit, meaning you get the proper neck tention, the crimp is not necessary. An exception would be with compressed loads, where the powder can and does expand after loading, pushing the bullet out.