Hi, I'm working on reloading 450 bushmaster for the first time and I'm doing drop tests to determine case overall length. At the max COL according to my die set of 2.26 I'm still not touching the lands and groves. I can drop the round in and spin it so it is definitely not engaging them at that length.
I'm using Hornady 230gr FMJs with Hornady brass in a Bear Creak AR 15 Upper.
I'm assuming I should not go over the max length but wanted to see what length others may be using with this combination. Also, what is the minimum length I should have the bullet into the case? Currently at this COL of 2.26 the bullet is only about 1/8 of an inch into the case and I'm concerned it needs to be further in to build up the correct amount of pressure. On the flip side I'm concerned if the bullet is too far from the Lands and Groves I'm going to have serious accuracy issues. Thanks!