7mm X 64mm loads using Hodgdon H4350

[Budgie Smuggler]

Hi HEYM SR20,
No the match kings aren't a hunting bullet,certificate waiting for expanding ammo,so using the waiting time to test different bullet weights.
The Sierra's in expanding are very similar to the match kings so hoping the loads I try now will convert to expanding bullets and be some where near the same accuracy.
The 177gr bullets were PPU and they didn't seem very uniform and also were a smaller diameter than expected.
They gave a very loose fit when seating compared to the tight fitting Sierra's but I suppose the price reflects this.

Thanks Southern,really like the load and glad to know it's got a good velocity.
Going to try different powders with this bullet,the next is Reload Swiss RS62.
Being a Europeon powder they have loads for the 7x64.

 

[Southern]

Measure your bore and bullets, because US 7mm bore standard is .277 bore and .284 grooves. Many European metric rifles are .285 groove.

The 7x64 can get 2,900+ FPS with 150-gr safely, from a 24-inch barrel. Sierra 150-gr is a great 7mm bullet and not expensive. So is the Speer 145-gr BTSP. So I have never yet spent the money and effort to try the 150-gr Accubond, which gets high marks ( for twice the price ).

RS62 is supposed to be about like Hodgdon 4831sc. If so, it should be excellent for the 160-gr and 175-gr bullets. The Sierra 160-gr BTHP and BTSP shoot to the same point of impact for my 7x64 and .280 Rem loaded with the same recipe for each bullet. The HP is a tougher bullet than the SP. The Speer Grand Slam is tougher, yet, but not the high BC of the Sierra or Hornady 162-gr SST.

 

[Budgie Smuggler]

Here is the burn rate chart for Reload Swiss.