6.5 x 47 Lapua - Reloading Question

[PharmShooter]

Guys,

I just received my new unfired custom built 6.5 x 47 Lapua and I am starting the process of doing hand loads. I have only loaded 300 or so rounds thus far for other rifles and definately still consider myself quite the novice despite doing a lot of study. My gunsmith told me my C.O.A.L. was 2.775 and I loaded a dummy round of brand new Lapua brass with 123gr scenars at that exact length. I chambered it and it was a little tight going in and the measurement coming out was 2.712 (.063 difference). Slight scratching on the bullet as well. I am using Redding type S match dies.

Thoughts????? Again, I am still new to reloading and seating into the lands is a topic I am still learning about. Also, what do you guys think about .040 to .050 jump?

Thanks,

Brad

 

[scudzuki]

COL is bullet specific.
Different bullets with different ogive shapes will yield different COLs when trying to load the bullet right off the lands.
A bullet with a longer more gradually tapered ogive will end up with a longer COL; the limit then may be what will fit in the DBM or internal magazine.
If you are reloading based on a recommendation from your 'smith, better make sure you are using the same bullet he used.

.040 or .050 seems like quite a long jump to start with unless you are limited by the magazine.

Joe

 

[Dkindels]

What are you measuring to? (Base to tip?) And the cartridge was shorter after you chambered it correct?

 

[PharmShooter]

I am measuring base to tip and the cartridge did shorten after chambering.

 

[milo 2.0]

With that bullet, the way you're measuring, the COAL should be around "2.650" app.

 

[Bob L Swagger]

I get fantastic results in both of my 6.5x47L's jumping the 123 Scenars .015"

 

[PharmShooter]

Thanks for the responses. Any other feedback??

 

[PharmShooter]

With that bullet, the way you're measuring, the COAL should be around "2.650" app.

Okay, I went back to the reloading bench and started over at 2.710 and went all the way down to 2.650. The bolt has just a little resistance closing now and there are slight scratches on the bullet.

Take it to the range and shoot it? Should I dial it back .005/.010/.015 more and test those loads?

Thanks for your help.

 

[milo 2.0]

Okay, I went back to the reloading bench and started over at 2.710 and went all the way down to 2.650. The bolt has just a little resistance closing now and their are slight scratches on the bullet.

Take it to the range and shoot it? Should I dial it back .005/.010/.015 more and test those loads?

Thanks for your help.

Did you take the firing pin out of the bolt? You really to find where the bullet contacts the lands, so you at least know for future adjustments.
Then work into a load through charge weight, and finally seating depth. Be aware there may be some rough tooling marks on the lands before a few rounds are fired, which can be misleading.
Being a Beanland gun, I'm sure just about anything you feed it will shoot!
Oh yeah, get a comparator for aiding in seating bullets. I'm not one to preach about buying gadgets, but a comparator set is worth it's weight in gold.

 

[PharmShooter]

Did you take the firing pin out of the bolt? You really to find where the bullet contacts the lands, so you at least know for future adjustments.
Then work into a load through charge weight, and finally seating depth. Be aware there may be some rough tooling marks on the lands before a few rounds are fired, which can be misleading.
Being a Beanland gun, I'm sure just about anything you feed it will shoot!
Oh yeah, get a comparator for aiding in seating bullets. I'm not one to preach about buying gadgets, but a comparator set is worth it's weight in gold.

Thanks for the info! This is exactly what I need. I remember the days when I bought a bunch of cheap .223 ammo and shot it in my AR. LOL!

 

[milo 2.0]

For what you have into the rig, you owe to yourself to find a good load. You'll be amazed at the accuracy, and repeatable accuracy, just take your time and keep track of your progress. Sometimes .003" in seating depth can make a world of difference.

 

[PharmShooter]

For what you have into the rig, you owe to yourself to find a good load. You'll be amazed at the accuracy, and repeatable accuracy, just take your time and keep track of your progress. Sometimes .003" in seating depth can make a world of difference.

Thanks again...I'm gonna give it a run and see what my results are.

 

[PharmShooter]

For what you have into the rig, you owe to yourself to find a good load. You'll be amazed at the accuracy, and repeatable accuracy, just take your time and keep track of your progress. Sometimes .003" in seating depth can make a world of difference.

Thanks again...I'm gonna give it a run and see what my results are.