Thread: .270 140 game kings exploding

Originally Posted by Tech

Hi @Flyblown, That is an interesting email that you have received from a Sierra technician, it confirms what is stated in the Sierra manuals with regards to the jacket manufacturing process but goes against what they say about the Pro Hunters being better for close shots and the Game Kings being more suited to longer range shots.
Likewise the email suggests rather different results than what Nathan Forster has found with several different calibre comparisons between the PH and GK projectiles. The 25-06 and 270 are two examples of this.

I challenged Nathan on this very matter in 2017. That is precisely what led me to emailing Sierra! I think Nathan is flat out wrong about the ProHunter being a tougher bullet, maybe because he has gotten mixed up over the years and not comparing bullets on a like for like basis (calibre, style & weight) as stated by Philip in the email. I shot both bullets in .243 and .308 for many years, and only discovered Foster’s website and his comments years afterwards. When I read that I was like... what??? So I got in touch and we had a debate. The Sierra email kind of put it to bed. But he’s moved on from that stuff now and so it remains as it was first written and probably always will.

What Sierra mean in their comparison between the two is that the GK has a higher BC, and hence it is more appropriate for longer range shooting.

Another part of the problem is the fact that the branding is shared across some very different bullet construction styles. For example the 180 grain GameKing is a completely different bullet to the 180 grain ProHunter round nose. The round nose PH is a properly tough close range bush bullet, but the GK is a solid long range bullet. But the two get compared in the same context, which is a mistake.