What is the most accurate way to find COL for a rifle ?

[Lefty Lawless]

I want to seat my bullet so it's against the lands so what is the most accurate way to do that ? Hornady Lock N Load system ?

 

[OneBadV8]

I want to seat my bullet so it's against the lands so what is the most accurate way to do that ? Hornady Lock N Load system ?

This is what I used

Hornady Lock-N-Load Overall Length Ga Bolt Action

The Hornady Lock-N-Load Overall Length Gauge is one of the best kept secrets to accurate reloading. This tool allows reloaders to quickly and easily...

www.midwayusa.com

 

[55fairlane]

I want to seat my bullet so it's against the lands so what is the most accurate way to do that ? Hornady Lock N Load system ?

I'm gonna ask why? What kind of accuracy do you currently have? What is your load?rifle?twist?
Some loads like some jump, some loads like some jam.
I did the 10 shot load development test, and called it a day. And my load just flat hammers at 600 yards.

 

[indyblue]

I thought most accurate loads were ones that were ~.002 - .015
off the lands and that touching them is usually not good because it can cause pressure spikes or stuck bullets that can’t be ejected.

 

[55fairlane]

I thought most accurate loads were ones that were ~.002 - .015
off the lands and that touching them is usually not good because it can cause pressure spikes or stuck bullets that can’t be ejected.

That all depends......how much freebore is I your chamber? There are some loads that will benefit from being "jammed"
The bigger issue I see, is, the bullet seating deapth has a certain affect on case volume. Seat that bullet to deap dangerous chamber pressure. Seat the bullet to far out, dangerous because not enough pressure to push the bullet with any affect.
Now guys who "jam" say, a bullet starts moving u till it hits the rifling, then stops, and starts moving again. By "jamming" you build case pressure and the bullet moves down the barrel in one motion

 

[Creedmoor]

This is what I used

Hornady Lock-N-Load Overall Length Ga Bolt Action

The Hornady Lock-N-Load Overall Length Gauge is one of the best kept secrets to accurate reloading. This tool allows reloaders to quickly and easily...

www.midwayusa.com

Mines older and says Stoney Creek on it.

 

[Lefty Lawless]

That all depends......how much freebore is I your chamber? There are some loads that will benefit from being "jammed"
The bigger issue I see, is, the bullet seating deapth has a certain affect on case volume. Seat that bullet to deap dangerous chamber pressure. Seat the bullet to far out, dangerous because not enough pressure to push the bullet with any affect.
Now guys who "jam" say, a bullet starts moving u till it hits the rifling, then stops, and starts moving again. By "jamming" you build case pressure and the bullet moves down the barrel in one motion

The load I'm using will be at the shoulder and not at the neck

 

[Lefty Lawless]

This is what I used

Hornady Lock-N-Load Overall Length Ga Bolt Action

The Hornady Lock-N-Load Overall Length Gauge is one of the best kept secrets to accurate reloading. This tool allows reloaders to quickly and easily...

www.midwayusa.com

Okay. That's what I was thinking.
I saw guy that cut an empty fire formed cartridge at the neck and chambered it to get col. I don't know how accurate that is though

 

[Lefty Lawless]

I'm gonna ask why? What kind of accuracy do you currently have? What is your load?rifle?twist?
Some loads like some jump, some loads like some jam.
I did the 10 shot load development test, and called it a day. And my load just flat hammers at 600 yards.

It's a Thompson Center Compass with a long throat

 

[indyjohn]

I have this one.

RCBS Precision Mic 308 Winchester

The RCBS Precision Mic is an indispensable tool for safe and accurate loads that help to extend the life of brass. The Precision Mic measures from the...

www.midwayusa.com

I'm gonna ask why? What kind of accuracy do you currently have? What is your load?rifle?twist?
Some loads like some jump, some loads like some jam.
I did the 10 shot load development test, and called it a day. And my load just flat hammers at 600 yards.

It's for documentation purposes. What is good for 1 rifle may not be good for another.

 

[Lefty Lawless]

I have this one.

RCBS Precision Mic 308 Winchester

The RCBS Precision Mic is an indispensable tool for safe and accurate loads that help to extend the life of brass. The Precision Mic measures from the...

www.midwayusa.com

It's for documentation purposes. What is good for 1 rifle may not be good for another.

I have this one.

RCBS Precision Mic 308 Winchester

The RCBS Precision Mic is an indispensable tool for safe and accurate loads that help to extend the life of brass. The Precision Mic measures from the...

www.midwayusa.com

It's for documentation purposes. What is good for 1 rifle may not be good for another.

I think I might purchase that RCBS tool

 

[Creedmoor]

I think I might purchase that RCBS tool

Look at the Hornady tools, thats who ended up with the stony point tools.
You just buy or make a threaded case to change calibers.
In the green some old ones from Sinclair.
The strait tool is for bolts and the curved is for levers.

 

[55fairlane]

I have this one.

RCBS Precision Mic 308 Winchester

The RCBS Precision Mic is an indispensable tool for safe and accurate loads that help to extend the life of brass. The Precision Mic measures from the...

www.midwayusa.com

It's for documentation purposes. What is good for 1 rifle may not be good for another.

Yes I know that. That's why I asked

 

[55fairlane]

The load I'm using will be at the shoulder and not at the neck

I have no idea what that means. So please don't blow yourself up

 

[Lefty Lawless]

Yes I know that. That's why I asked

My friend has the Hornady Lock N Load setup. He also has a tap so that I can use one of my previously fired 300 win mag brass

 

[bwframe]

My friend has the Hornady Lock N Load setup. He also has a tap so that I can use one of my previously fired 300 win mag brass

Looks like Hornady's factory modded cases sell for 15-20 bucks on Amazon.

 

[Creedmoor]

Looks like Hornady's factory modded cases sell for 15-20 bucks on Amazon.

Wow, they used to be about 4 bucks.

 

[bwframe]

Wow, they used to be about 4 bucks.

Bidenomics and the scamdemic forced all pricing to insanity levels.

What is your labor worth now vs back then though? How much time would it take to match Hornady's factory modded case vs matching that yourself?

 

[Lefty Lawless]

Okay so I got my 300 win mag brass tapped and put a 200 grain SGK bullet in and it's too long to fit in the magazine

 

[bwframe]

Okay so I got my 300 win mag brass tapped and put a 200 grain SGK bullet in and it's too long to fit in the magazine

That wasn't expected as a result of touching the lands with your load?