Just a side note.
In 1972, a newly posted RCMP officer to Smither's BC, went into the local sporting good shop, Family Ski and Sport Shop & bought a BRNO ZKK 602 in .358 Norma Magnum, dies and .358 bullets in 280gr.RN Speer.

In 1973, transferred to Surrey B.C., I started shooting at the Barnet range in Burnaby with my cousin, a Beaufighter Pilot from WW11, RAF/RCAF out Scotland in the "Strike Wings".

Anyway, I started off shooting 250gr. Speer SP's as they'd group into and sometimes under 1/2" AT 100 YARDS. That cousin, Eddie (Art Edwards) talked me into getting a Lyman mould, casting bullets and shooting cast bullets with the rifle's peep sight, in the 3-position SFC (Shooting Federation of Canada) contests. That I did and placed right with him, Sharpshooter, 1-up from Marksman - LOL. He was cheap, and refused to shoot anything but cast bullets in his match .308. I was a 2 MOA rifle off bags, so Sharpshooter, he was. I might have those designations crossed.

I had an opportunity to pick up an unfired .375H&H ZKK602 barrel for my BRNO, so I did and a gun smith, Ian Dingwall in Richmond, BC, did the replacement work. The .375 barrel cranked up, sights straight up and down and it headspaced just fine. Amazing!

After that, I went with the Lyman #375296 bullet for my 3-position shooting - for a while. In 75, I sold the .375 and built a dedicated .308 match rifle, 41.5gr. IMR4895, CCI BR2's, 168gr.MKs & instantly made Master and that was that.

I regretted selling the .375 BRNO the instant I did it. A year later, I tried to buy it back and the lad I sold it to, said he'd turned down all his buddies who wanted it as well.

It was 30 years before I got another BRNO, this one a 600, in 7x57 and I let that one go as well!!!!!!!