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Help iddentify these dies

Picked up a large lot of loading equipment and have several items im not fully sure of what they are or there value. Any help with these? 3 in brown tubes are made by sinclair for .22, 6mm and .30 from what i can tell i think they are arbor dies but not real sure of their use. Also have 3 lyman "neck expander dies"?? Shown in 2nd pic
 

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Arbor dies for uniforming necks or exapanding up.
Can’t see the Lyman well but if similar look up Lyman M die.
 
The M die can serve the same purpose but we’re intended for cast bullets as the will put a slight bell on the case mouth if adjusted properly.
 
They are for use in a regular loading press not an arbor press. The first picture shows neck mandrel expanding dies. Sinclair made them with mandrels that matched. One for expanding and one slightly smaller for the neck turning tool. 21st Century makes them in a bunch of sizes to control neck tension.
 
Walt, thank you for the info. Also Jsh thank you. I have a supply of 22 and mi carbing powder coated lead bullets. Dont currently own an m1 carbine but holding onto all the components since id like to have one at some point. Think ill hold onto the m dies as well.

Any idea of what the sinclair mandrel dies would be worth to someone or do they not hold much value?
 
Walt corrected me, I meant mandrel when I mentioned arbor, lol spelling is about the same.

I have one mandrel body and several mandrels. If the OD is correct many use them on a regular basis from what I have seen.
 
Two of them are Lyman “m” dies, one is for a 44 caliber the other is a 38 special. The center one is likely a RCBS version of a “m” die but it doesn’t indicate the size. You can remove the stem and measure the plug end to see what it fits. They typically run about the size of a jacketed bullet.

Thanks
David
 

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