@mike711 kinda beat me to it, but why do you need to get to that exact spot and not just the same spot that you can find readily? I use Alex's method when I first get a new barrel to find the exact point where the bolt stops dropping freely and that is as far out as I will seat a bullet - I work in from there because I want that buttery smooth bolt close that only a precisely bumped shoulder and bullet free of any jam will give me.I still use my Stony Point.
When I setup my Bat last spring, I tried the Wheeler method. The challenge I had was feeling the difference between the bullet in the lands and the bullet being in the throat. With the bullet off the lands, I'd get just a bit of bolt lift resistance, and thought it was in the lands.
Alex has a great technique, I just haven't developed the proper feel to use it consistently.
This is a great way to check it. Most accurate for me anyway.Barrel-stub head-space gauge, and for new BBL, perfect seating depth gauge: this, or, for when ya have to, "chase the lands", the method displayed by Alex.
...and who wants to completely disassemble thier bolt every time they work up a load?That’s what I was thinking, it probably works great In a custom action where the tolerances are held to .0001 but my trued Remington 700 may not have those kind of tolerances....
If you're going REAL slow!It takes like five minutes... if you're going slow.
If you're going REAL slow!
I am having a hard time grasping this so bear with me. I was thinking you would measure the sized case in the barrel stub like a comparator does. Then seat a bullet long, then keep seating the bullet deeper until you get that same case- barrel stub measurement and this would be your touch point. Does this make any sense compared to what you were describing?I use a barrel stub - drop the bullet lightly into the lands (touch), measure the depth from the front of the stub. Then seat the same bullet and measure again. The difference is the number you use to figure out how to set your die to get to touch. This obviously only works with a new barrel, but once you know where touch is, you can work up a load. From that point on, you don't really care about where touch is - you just follow the tune as the barrel wears.
I had a dog and B I N G O was his name!You don't need to know where the bullet is just touching the lands.
Find jam and work your bullet away from there, until you get good groups.
I'm with you.You don't need to know where the bullet is just touching the lands.
Find jam and work your bullet away from there, until you get good groups.
That's how I used to do it, but then it dawned on me that it's easier to measure it from the front. You wind up with the same number, but the measurement is more reliable the way I do it, in my opinion. You can get a pretty precise measure of a bullet that's just lightly dropped into the stub.I am having a hard time grasping this so bear with me. I was thinking you would measure the sized case in the barrel stub like a comparator does. Then seat a bullet long, then keep seating the bullet deeper until you get that same case- barrel stub measurement and this would be your touch point. Does this make any sense compared to what you were describing?
Edit: I guess what I said wouldn’t work on a sized case because you would still have some more space back to the bolt face. Maybe a full formed case that was neck sized work? The Wheeler method has worked well for me, I was just trying to figure the barrel stub way out.
I assume everyone has seen this?
Yep, the floating bolt head on the Bighorn does add a twist. I’d like to here from anyone that’s got it nailed. Without hyjacking somehow.Probably work just fine in your 700... it works like a champ in my Savage(s).
Gas guns... not so much.
And my Zermatt/Bighorn Origin had some quirk about the bolt head where it doesn't work so well. Can't remember for the life of me what it is, but I'm sure the next time I go to use it, it'll occur to me
The tighter the freebore diameter in the chamber, the more having minimal TIR in the loaded round will affect your 'readings'. Obviously not a problem for high-end guns like what Alex builds, or even really for any decent aftermarket barrel. Factory barrels... might not work as well in every instance.
Yep, the floating bolt head on the Bighorn does add a twist. I’d like to here from anyone that’s got it nailed. Without hijacking somehow.