Dear Sirs!

I am absolutely new to this forum. I would like to start reloading 7x64, but I haven�t found the data for 150/175gr Remington CORE-LOKT bullets. Could you help me? What is your favourite loads and bullets? Why? Do you have any other comments? Thanks in advance!

Thanks for all your replies!

I started looking around for components and have another question, should I use a slow powders such N-160 and Magnum primers with 175gr bullet and why or why not?

Thanks in advance!

I have loaded for a .280 a lot and never found a need for using a magmum primer. I was loading 4350/4831/7828 and powders of that ilk. Heaviest bullet was a 160.

Powders in the burn-range of N-160 will work well in a case the size of the 7x64. It has been my "do it all" powder for mid-size cases for quite a while. You can go slower in the burn-rate, should you desire to do so, and end up with powders like Norma MRP, RWS R905, RL22 (basically all the same powder). You *might* find the slower powder to give you slightly higher velocities with bullets as heavy as 175 grs, but then again, unless you have access to a chronograph, you'll never know actual velocities and may happily shoot N160 loads for the remainder of your life. The animals won't know the difference, that is for sure. I'd probably choose based on achievable accuracy, price and availability of components.

I don't think I'd choose a powder much faster than N160 for bullets as heavy 175 grs - slower if anything.

I personally don't see the need to use magnum primers in a case the size of the 7x64. The magnum primers give you a hotter burn, which may be an advantage when you want to ignite large amounts of powder. I see little problems with igniting the less than 60 grs of powders that will fit into the 7x64 case with standard primers. Others may have different ideas. Be aware that the choice of primers (in particular magnum vs. non-magnum) has a profound effect on pressure. Should you decide to switch from non-magnum to magnum, you'll have to start from below again.

Good luck.

- mike

Welcome Petr, the .280 & 7x64 are so close you can use loading data for both. They are slightly overbore so slower powders will give you the best results, usually. I like 160gr bullets for allround use in my .280. Standard primers work well, but nothing wrong w/ magnum primers if they give you an accuracy advantage, just be carefull when switching any components after you have worked up a load. Good shooting.

This is the only load I use for deer in my Cz550 7x64. It is extremely accurate in my rifle.

Bullet;150NBT
Powder;IMR4350
Primer;CCI250
Charge;55gr
Case;RP
OAL;3.35
Avg Vel;2850

My std. load for the 7x64 uses N160/56.0 behind a 160 gn bullet. I insist on CCI 250 primers as I experience vertical elongation of my groups with std. primers (actually, your own rifle will tell). This load is not max and clocks at 858 m" (2815 ft"). For Roe deer I use the Sierra 160 SPBT GK but switch to the harder 160 HPBT GK if heavier game is to be encountered (same POI and accuracy). About accuracy, these loads shoot < .5 MOA out of my Sauer 202.