Sinclair Mandrels
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Re: Sinclair Mandrels
I use both the expander mandrel and the turning mandrel. I have the gen 2 expander die. All of it works very well. If I ever need to neck something up (like 6.5x284 lapua brass to 7mm) I use the expander and it works perfect.
I use both the expander mandrel and the turning mandrel. I have the gen 2 expander die. All of it works very well. If I ever need to neck something up (like 6.5x284 lapua brass to 7mm) I use the expander and it works perfect.
Re: Sinclair Mandrels
I used the expander mandrel/die for the first time 2 weeks ago in lieu of the expander ball. Takes longer to size cases of course but I think neck tension and runout are more consistant. Neck runout is now .001" or less coming out of Redding Type S FL bushing dies.
Just started neck turning (Sinclair NT4000 with carbide turning mandrel) and am very pleased with the results on paper. Cases are near flawless now, it's making me want to get calipers/dial indicators that read to .0001"... but that would be crazy.
I used the expander mandrel/die for the first time 2 weeks ago in lieu of the expander ball. Takes longer to size cases of course but I think neck tension and runout are more consistant. Neck runout is now .001" or less coming out of Redding Type S FL bushing dies.
Just started neck turning (Sinclair NT4000 with carbide turning mandrel) and am very pleased with the results on paper. Cases are near flawless now, it's making me want to get calipers/dial indicators that read to .0001"... but that would be crazy.
Re: Sinclair Mandrels
I've been doing this for a while and have reverted to a .0001 indicator for neck turned cases...it works very well for me.
FYI someone mentioned the K&M system on another thread as a cheaper alternative...I have no experience with it, but it looks pretty good.
I've been doing this for a while and have reverted to a .0001 indicator for neck turned cases...it works very well for me.
FYI someone mentioned the K&M system on another thread as a cheaper alternative...I have no experience with it, but it looks pretty good.
Re: Sinclair Mandrels
Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.
Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.
Re: Sinclair Mandrels
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body">Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.</div></div>
Why do you run the expander/mandrel set up? What does it supply over running the cases through a bushing that leaves it at .002? One more step for all cases, so I'm trying to see the benefit here. Thanks.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body">Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.</div></div>
Why do you run the expander/mandrel set up? What does it supply over running the cases through a bushing that leaves it at .002? One more step for all cases, so I'm trying to see the benefit here. Thanks.
Re: Sinclair Mandrels
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Lowe Left</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body">Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.</div></div>
Why do you run the expander/mandrel set up? What does it supply over running the cases through a bushing that leaves it at .002? One more step for all cases, so I'm trying to see the benefit here. Thanks. </div></div>
I was wondering the same thing... Only thing I can figure is to get the same neck tension without turning the neck. It would work if you didn't have a tight chamber.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Lowe Left</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: turbo54</div><div class="ubbcode-body">Avidflyer, please give us more information about your application.
I load ammo on a Dillon 650:
I have a Forster bushing/bump die in station 1. I use a bushing that leaves the neck OD about .004" UNDER what it measures when a bullet is loaded.
I have the sinclair expander die in station 2. I use the "neck turning" mandrel, which is .002" under bullet diameter.
Essentially, I bushing size a little small, so the expander has some work to do, and get the case ID just right for .002" neck tension.</div></div>
Why do you run the expander/mandrel set up? What does it supply over running the cases through a bushing that leaves it at .002? One more step for all cases, so I'm trying to see the benefit here. Thanks. </div></div>
I was wondering the same thing... Only thing I can figure is to get the same neck tension without turning the neck. It would work if you didn't have a tight chamber.
Re: Sinclair Mandrels
I use them to expand a 30-06 neck to 338 and a 338 win mag neck to 375. With the 375 I was having problems deforming the case just running it into my F/L sizer. Once i sized using the .35 and then the .375 mandrel is was smooth sailing.
for neck turning I use K&M mandrels
I use them to expand a 30-06 neck to 338 and a 338 win mag neck to 375. With the 375 I was having problems deforming the case just running it into my F/L sizer. Once i sized using the .35 and then the .375 mandrel is was smooth sailing.
for neck turning I use K&M mandrels
