Recent content by Jordan Smith

8 twist and don't look back...

That sounds like an amusing experiment to watch! ;) Another way that I like to explain it to people, is that when we were kids we had tire swings mounted in the playground. A tire was suspended on the flat, with 3 chains around the circumference of the tire all converging to one mounting...

Or just neck down .300WSM brass with a false shoulder, using nothing more than a simple pass through your 7WSM sizing die. The vast majority of my 7WSM ammo has a .300WSM headstamp...

You got it! Sometimes verbal explanations of physical properties or principles can be pretty tough to imagine. Seeing it with your own eyes can make things come together and connect all the dots a bit easier than trying to visualize words :)

Sorry, I might have given the wrong impression. I'm not implying that there is a gravitational horizontal component to Coriolis, simply that the trajectory of the bullet is in plane with the axis of gravity, regardless of geographic location, while the rotating sphere only follows that same...

I was just about to weigh in with this exact "north pole" explanation, but I saw that you had already done so. Great post. To add to this description just a little bit- I believe one reason for this effect, is that the shooter/bullet trajectory is perpendicular to the surface of the earth...

A false shoulder is one way, but you can also control headspace during fireforming by jamming the bullet into the lands, which simplifies the use of .270 WSM brass. But I'll opt for .300 WSM brass every time because a false shoulder is ideal in headspace control, and is a simple neck down far...

Anneal your brass every few firings. I just noticed your post about your powder scale. That's also an obvious source of velocity variation.

Recoil.

I would focus on ensuring consistent neck tension, and making sure your chrono is giving reliable readings (which I'm skeptical of).

The oscillation is actually more of an elliptical shape rather than little circles, with a horizontal component- more like a figure 8. There are two factors in this sine wave oscillation that lead to accuracy, and minimal vertical spread at distance- bullets exiting the muzzle at a node (small...

If your friends have iPhones, then Ballistic:AE is great. Support has been consistent and frequent for several years. Applied Ballisitics seems pretty good also, but in its incomplete state it doesn't compete with Ballistic:AE. I have both, but rely on Ballistic at this point in time. That may...

Which OS are you talking about?

If the bullets are producing nice, round holes on target, then the jackets aren't coming apart. I think that fella with the Walker just couldn't find a load his barrel liked. My 7WSM has a Krieger 8" twist 4-groove barrel, and shoots the 195's great.

Definitely. These high-BC bullets in short action cartridges are an amazing bang for buck.