Redding Mandrel Kit

[track]

Inquiring if any handloaders have used this system? Had accuracy improved, even by a little-bit? I assume that full-length resizing without the expander ball would be used and then the mandrel? Thanks!

 

[Driftluv]

I dont have the redding Mandrel kit but im using mandrel for 2 years now and see a significant improve. Not only in accuracy but mostly in consistency round after round. Better SD and ES. Smoother bullet seating (depending on what neck tension you want) and better concentricity. I just use my FL sizing die as a Body die( no decapping/no expander ball) and use a -0.002 mandrel after.

 

['Boo]

While I haven't used the Redding product I have been using the Sinclair Mandrels for many years.

I remove the standard expander-primer assembly from the die and partial full-size the case. I remove the primer with a dedicated decapping die.

After seating with a straight-line seater I can usually achieve under .003" bullet runout. There definitely is a small improvement in accuracy with a decent rifle but it is hard to quantify how much better.

 

[track]

I dont have the redding Mandrel kit but im using mandrel for 2 years now and see a significant improve. Not only in accuracy but mostly in consistency round after round. Better SD and ES. Smoother bullet seating (depending on what neck tension you want) and better concentricity. I just use my FL sizing die as a Body die( no decapping/no expander ball) and use a -0.002 mandrel after.

Thanks for your reply.

 

[track]

While I haven't used the Redding product I have been using the Sinclair Mandrels for many years.

I remove the standard expander-primer assembly from the die and partial full-size the case. I remove the primer with a dedicated decapping die.

After seating with a straight-line seater I can usually achieve under .003" bullet runout. There definitely is a small improvement in accuracy with a decent rifle but it is hard to quantify how much better.

Thanks a bunch.

 

[Driftluv]

thats the kit im using! i think its a good kit for the price if you reload multiple caliber

https://precisionzone.ca/collections/by-brand/products/apw-expander-mandrel-set

 

[Driftluv]

also here is a interesting video to show the impact of the mandrel when seating.

 

[track]

also here is a interesting video to show the impact of the mandrel when seating.

Thanks,this is a great illustration.