Painless load development (mine)

[Castle Rock]

Simple test, add a few layers of sellotape to the base of a round, trimmed closely and if the bolt will close you are over sizing.

 

[9487329]

I just use RCBS FL sizing dies, set up in the "normal" way I've seen prescribed. I thought simple dies like that were hard to mess up but I could be wrong

 

[ridgeline]

Following die makers instructions can get ugly ! The very first thing I want to know is, where my brass will headspace within my chamber. I always want positive headspace control.

 

[TradLife406]

In May I started using the Derraco PCPS Primer Seater. It a pretty inexpensive way to easily set the primer depth and crush you want. The tool is amazingly consistent. Since I started using it my primers are all seated +/- .0005 from target. Whether that level of consistency makes any difference on target is debatable but it has tightened up my ES and SD numbers, It is also very easy to use and fast.

I'd be curious on how much the improvement is on a 30 shot group.
Still hand priming but I hear guys say these fancier primers help. But I've never seen anyone say by how much.

 

[Castle Rock]

Psychological I would recon