.300Blk reloading tips, tricks, recipes, etc

[LittleLebowski]

For the Dillon 550 it looks like you use the #3 shellplate, #3 locator buttons, and the "AK" powder funnel unless you are belling/flaring the case in which case you want the .30 Carbine 13564 powder funnel.

I just ordered the .30 Carbine powder funnel off of eBay, I'll update this thread w/ how it works.

[Jared]

Is the 300 Blackout noted for any idiosyncrasies in the reloading process? I've never loaded for it, but I've loaded a good bit of other centerfire rifle ammo on single stage presses back in the day.

[JM Campbell]

Watch you bell size, keep it to the minimum amount needed. Split cases happen very fast on cases that are not anealed.

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[rojocorsa]

Are forming your own brass or using original 300blk brass?

[LittleLebowski]

I'm just buying brass. I've noted that some speak about having to use a different die than what Dillon recommends (hence my ordering decision) and some also claim that the shell plate needs washers underneath it.

[JM Campbell]

I've used the RCBS and Forster dies for 300blk, they both work well-no shim needed. I like the Forster seating die that is micrometer adjustable. It makes switching from super to sub rounds faster and if you keep a log you can adjust on the fly also with powder charge if you have the micrometer adjustable powder bar as well. Log your settings for your rounds, check your notes and adjust then check your first few powder drops and seat/measure your first few rounds.

All of my 300blk is loaded on a 550b.

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[LittleLebowski]

I've used the RCBS and Forster dies for 300blk, they both work well-no shim needed. I like the Forster seating die that is micrometer adjustable. It makes switching from super to sub rounds faster and if you keep a log you can adjust on the fly also with powder charge if you have the micrometer adjustable powder bar as well. Log your settings for your rounds, check your notes and adjust then check your first few powder drops and seat/measure your first few rounds.

All of my 300blk is loaded on a 550b.

You're gonna cost me some money, I needed that reminder on the powder bar device as well

[JM Campbell]

You're gonna cost me some money, I needed that reminder on the powder bar device as well

Pretty much the same as the Uniquetek one.

https://ballistictools.com/store/dil...on-powder-bars


https://ballistictools.com/store/dil...powder-measure

Ballistictools.com is a reliable source, order multiple times from him, including brass, case guages and dillon upgrades.

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[LittleLebowski]

Pretty much the same as the Uniquetek one.

https://ballistictools.com/store/dil...on-powder-bars


https://ballistictools.com/store/dil...powder-measure

Ballistictools.com is a reliable source, order multiple times from him, including brass, case guages and dillon upgrades.

You rock, dude. Half the cost of the Uniquetek! I already have their powder funnel upgrade.

[LittleLebowski]

What powder bar are you using for .300Blk?