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View Full Version : Does RCBS sell just the seater die individually?



huntinlever
03-03-2023, 02:43 PM
Wondering whether RCBS sells the seater dies singly, for when we use two or more bullets (and different depths) on a given caliber? Don't want to have to reset the seater die each time I load for the different bullets.

DCB
03-03-2023, 02:52 PM
Yeh, They sell a bunch of different seater dies and plugs for different bullets.

engineer401
03-03-2023, 04:50 PM
I’ve purchased several RCBS seater dies for the reasons you state above. Most of them came from Midway. You can also purchase seater dies from other manufacturers. There are a lot of choices.

huntinlever
03-03-2023, 05:29 PM
OK, thanks guys. I'm not used to working with bolt-action bullets with cannelures - something like the Interlock in .338 WM, can I just use the LFC for the crimp and just use the RCBS seater to seat the bullet, like I do with my 45-70 w/ crimp groove? I imagine a very light crimp only?

DCB
03-03-2023, 06:53 PM
Yes if the crimp die is in 338"

huntinlever
03-03-2023, 07:00 PM
Thanks.

Sasquatch-1
03-04-2023, 09:59 AM
If you already have the seating die make up dummy rounds. Makes setting the die a breeze.

Three44s
03-04-2023, 08:43 PM
A seater die with micrometer adjustment is another option.

Three44s

TNsailorman
03-04-2023, 10:11 PM
As stated, the easiest way is just make up a "master" cartridge without powder or primer and use it to adjust for reloading. I have 2 cartridges for my rifle loads to adjust the dies. One is for seating the bullet and the other is for crimping (if I crimp a load). Works for me, james

huntinlever
03-04-2023, 10:39 PM
As stated, the easiest way is just make up a "master" cartridge without powder or primer and use it to adjust for reloading. I have 2 cartridges for my rifle loads to adjust the dies. One is for seating the bullet and the other is for crimping (if I crimp a load). Works for me, james

Thanks James. I sort of do that, when I've found the right setup, but as stupid as it sounds more to record the stats for future reference to use it itself to adjust dies, etc. Duh.

Thanks guys. Wasn't able to source the RCBS seater by itself in .338 WM so picked up the Hornady. Three444's, that micrometer stem seems interesting.

BK7saum
03-05-2023, 09:04 PM
Why would you crimp any jacketed bullet for use in a bolt action rifle. I have never found a need to crimp for bolt actions. Accuracy was always better with uncrimped ammo and I didnt have to trim every time to make sure I had uniform crimps.

huntinlever
03-05-2023, 09:34 PM
Why would you crimp any jacketed bullet for use in a bolt action rifle. I have never found a need to crimp for bolt actions. Accuracy was always better with uncrimped ammo and I didnt have to trim every time to make sure I had uniform crimps.

Seems weird to me too, but with the cannelures I'd thought it was needed, so the round won't catch, for one. No?

Edit: Actually, I'd seen this from Hornady: "CANNELURE - Provides accurate and consistent crimping and also works with InterLock® ring to ensure the core and jacket remain locked during expansion."

GWS
03-05-2023, 09:37 PM
Why would you crimp any jacketed bullet for use in a bolt action rifle. I have never found a need to crimp for bolt actions. Accuracy was always better with uncrimped ammo and I didnt have to trim every time to make sure I had uniform crimps.

Normally, I agree. However there is one reason I might be interested in a light crimp......when I use an "M" die to prepare a neck for bullet drops from a collator to a bullet feed die in the station just before the seater on a progressive. (that done to prevent the "tilt" of bullets or boolets, on the progressive merry-go-round.) Of course, I would never do that on calibers I only load on a single stage or for that matter, a press with 5 or fewer stations. Being spoiled with 7 stations, and again recently with 6 stations so I can do that. In such a case the type of bolt makes no difference to me.

quack1
03-06-2023, 08:54 AM
Every seating die can have the equivalent to a micrometer seating stem. Just use your calipers to measure the length of the die, top to bottom, for each bullet you use. Record the die measurements for each bullet on a slip of paper and put it in the die box. Added benefit, takes up a lot less space than a bunch of dummy cartridges. It only takes seconds to accurately set the die for whatever bullet you are using.

huntinlever
03-06-2023, 05:54 PM
Every seating die can have the equivalent to a micrometer seating stem. Just use your calipers to measure the length of the die, top to bottom, for each bullet you use. Record the die measurements for each bullet on a slip of paper and put it in the die box. Added benefit, takes up a lot less space than a bunch of dummy cartridges. It only takes seconds to accurately set the die for whatever bullet you are using.

Sorry, not following you. I did think to measure the seater stem depth (by measuring from the top of the body to the top of the stem), but given that a small rotation of the stem can result in substantial differences as we're talking in 0.001's, abandoned the idea.

kenton
03-06-2023, 08:56 PM
Sorry, not following you. I did think to measure the seater stem depth (by measuring from the top of the body to the top of the stem), but given that a small rotation of the stem can result in substantial differences as we're talking in 0.001's, abandoned the idea.

???

The top and bottom of the seating stem move the same when the stem is adjusted, they are one piece. A .001" movement on the seating portion of the stem will result in .001" movement at the top.

quack1
03-06-2023, 09:20 PM
???

The top and bottom of the seating stem move the same when the stem is adjusted, they are one piece. A .001" movement on the seating portion of the stem will result in .001" movement at the top.

Use calipers to measure the length of the entire die, seating stem and die body together. You could measure from the top of the body to the top of the stem, but due to the construction of some makes of dies, it's easier and more accurate to measure the whole die.

huntinlever
03-06-2023, 09:52 PM
???

The top and bottom of the seating stem move the same when the stem is adjusted, they are one piece. A .001" movement on the seating portion of the stem will result in .001" movement at the top.

Yes, but you don't see how far down the body the stem is going to seat to a certain depth, right? You only see how far by the change in distance from the top of the body to top of the stem? I must be missing something. I actually like doing a dummy round anyway, keep it on the shelf for easy reference.