Unsolicited plug for a great gadget ...

[rustyinbend]

I got my Bullet Seating Depth Comparator from Accuracy One yesterday. It looked like a great gadget in the YouTube video I stumbled across, but we all know how that stuff usually works out ... Anyway, I was up and running with this thing in virtually zero time, and loaded 300-WM, 300-PRC, and 6.5-CM ammo this morning without touching any calipers or comparator attachments. This is one of the best reloading gadgets I've seen, and it's WAY better than it's quiet story, running mostly under the radar. If you're tired of juggling calipers while seating bullets, you simply "must" get one of these. Don't forget to buy the little mounting stand that goes with it if you want to be truly "hands free" when checking seating depth. Including the ordering web site below. Best if done on the phone, since their version of online ordering is filling out a form and Emailing it to them. And "NO", I'm not a paid spokesmodel ... I just wanted to share a really positive product experience.

Seating Depth Comparator

The Accuracy One Seating Depth Comparator measures bullet seating depth, ensuring consistency. Compatible with 22 to 30 caliber cartridges.

bullettipping.com

 

[pmclaine]

Thank you.

I love gadgets.

 

[ShtrRdy]

It sounds like this measurement tool measures the distance from case shoulder to the ogive of the bullet. We all strive to push the shoulder back the same amount on each case but there are a handful of variables which cause a variation.

I'm going to stick with measuring from the base of the cartridge to the ogive on the bullet.

 

[spife7980]

Im curious how a universal tool measures all the different calibers effectively where it counts.

 

[rustyinbend]

It sounds like this measurement tool measures the distance from case shoulder to the ogive of the bullet. We all strive to push the shoulder back the same amount on each case but there are a handful of variables which cause a variation.

I'm going to stick with measuring from the base of the cartridge to the ogive on the bullet.

Yup ... IMHO that's actually one of the positives. It measures "one thing" ... seating depth. When I size, I measure for shoulder bump anyway. I just liked the ability to ditch the calipers for seating, and having used both ... this gadget is way easier and much faster. It also proved to me that it's more accurate ... Push & Read vs. giggle around to find the flat spot. YMMV To each his own.

 

[rustyinbend]

Im curious how a universal tool measures all the different calibers effectively where it counts.

It's just a great design that allows for sizes and ogives from .22 to 30-cal. I was surprised too.

 

[rustyinbend]

Im curious how a universal tool measures all the different calibers effectively where it counts.

This video helps show how it works ...

 

[spife7980]

It's just a great design that allows for sizes and ogives from .22 to 30-cal. I was surprised too.

Got a picture of the stems internal? If it a big radius or a bunch of little steps or what?

 

[rustyinbend]

Got a picture of the stems internal? If it a big radius or a bunch of little steps or what?

Sorry ... not sure I understand the question. Just push in the bullet, the tip touches a plunger and it starts moving, and stops when the shoulder seats. Is that what you're asking?

 

[rustyinbend]

Got a picture of the stems internal? If it a big radius or a bunch of little steps or what?

Here's the best photo I could get of the base ...

 

[spife7980]

Sorry ... not sure I understand the question. Just push in the bullet, the tip touches a plunger and it starts moving, and stops when the shoulder seats. Is that what you're asking?

Basically, so it references its length off the tip is what youre saying?

Looks like it would be going off of that coned surface

In which case I still dont see how it would be refencing every bullet for every caliber at the base of the ogive. Measuring off of the tip or mid curve wont provide the measurement at the point where the bullet actually touches the barrel, thats my only concern really. Any way you could spin a couple different caliper bullets against the seating stem to show on the bullet where its touching?


But maybe it doesnt make any difference.
I know the bob green comparator measures bullets from the base of the ogive to up on the mid curve which allows you to sort the bullets themselves into like lots based on geometry.

 

[rustyinbend]

I think the idea is that as long as you're consistently hitting the same spot on the ogive ... and measure from there when logging distance to the Lands ... it should give a very consistent result. You still use the modified case and OAL gauge like always. But you do your measuring with this gadget, instead of with calipers. It worked perfectly for me on multiple calibers. The video helps explain it better than I can.