Thread: Reducing ES - 223

OK I'll ask another way, changing brass from Hornady, to "old" Lapua, to Sako has reduced my 10 shot groups each time. Velocity as expected due to case capacity has changed a wee bit each time. But ES has gone out. I hear ya on the sample size thing but group shape etc has also changed.

I took the bolt to bits and the firing pin spring was definitely binding inside the bolt body, mainly at the ends so I fixed that. Nothing I can do about it touching in the middle as it kinks. It's frustrating cause I think the rifle will shoot, there's just something I can't find that will allow it to perform.

I took my 224 Valkyrie out today, it put 10 into 0.89 MOA without effort, that sorta gives me confidence in my shooting and reloading.