reloading the 7x57

[8 ball]

Why should a guy "over prime" to get results?

4350, any breed, does just as good or better, than ball powders like 760/414.

Your comment is ridiculous.

If using a magnum primer makes a certain powder work better, then it is not "over primed". It's called matching the primer to the propellant. In my humble opinion your comment is ridiculous.

 

[hoytcanon]

Another good load in my two 7X57's is 50.0 grains of RL-19 with the H154 SST/IB's... the powder fills to half way up the neck, but with a COL of 3.100" (over length for my No.1) the compression is only mild, and RL-19 handles compression better than most... I was out of RL-19 for over a year, but this week a swell fella hooked me up with a pound.

 

[Fassteel]

Another good load in my two 7X57's is 50.0 grains of RL-19 with the H154 SST/IB's... the powder fills to half way up the neck, but with a COL of 3.100" (over length for my No.1) the compression is only mild, and RL-19 handles compression better than most... I was out of RL-19 for over a year, but this week a swell fella hooked me up with a pound.

This is the load I have my 7x57 with the 140gr Barnes TSX bullet, shoots fantastic in my rifle. FS

 

[Mount Sweetness]

Magnum CCI primer, 49.2gr W760, 139gr Hornady Interlock