457 Texan Carbine with the new valve. Bullet Mold size question.

My .50 mics at .510" so i would suspect the .45 to clock in right at .457"

I have a Texan and I actually have started shooting a 452 size bullet in mine it's been accurate out to the 100yd mark farthest the range I go to has a friend told me to try them I couldn't believe how accurate they are. I have a NOE 460-300 mold that has been accurate drops between 280gr to 290+ in hp sized to 457 they fit about half way in real tight, I've sized them down to 454 before they'd seat a little deeper.

My Texan slugs .457 on the nose. When I ordered it I got a couple different slugs from the outfit I got it from. They turned out to be a semi wad cutter pistol bullets sized .452 with some outliers. They shot quite well, tight enough I'd hunt with them with no worries and have taken woodland vermin out past 100 yards with them. In the ensuing couple years I've picked up an RCBS 2 cavity mould that drops 325 grain bullets at .429 then I size them to .457. The cast and properly sized bullets shoot hands down better, often ragged holes. I also use a silicon based lube on everything I put through the rifle.

IndyDurtdigger said:

My Texan slugs .457 on the nose. When I ordered it I got a couple different slugs from the outfit I got it from. They turned out to be a semi wad cutter pistol bullets sized .452 with some outliers. They shot quite well, tight enough I'd hunt with them with no worries and have taken woodland vermin out past 100 yards with them. In the ensuing couple years I've picked up an RCBS 2 cavity mould that drops 325 grain bullets at .429 then I size them to .457. The cast and properly sized bullets shoot hands down better, often ragged holes. I also use a silicon based lube on everything I put through the rifle.

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You what now???

For powderburners you tend to size bullets 1-2 thousands over nominal bore size, but airguns are limited on power so right on the slugged diameter is where you want to be. And please use some decent lube! Cant stress that enough. I have read many horror stories where folks shoot slugs naked and after a few shots starts to see groups failing and cant understand why.
Scrubbing lead is a severe chore and no fun at all when you ought to be shooting!

Silicone oil, synthetic 2-stroke oil, Alphabet org, Swiss coco clock juice or what ever you fancy.
Just use enough and lube the same every tine!!!
Slippery one day and almost dry the second wont group the same and cause lots of frustration ;-)

Chickenthief said:

You what now???

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I cast my own and size them to match bore diameter.

Slug your barrel to find the groove diameter. My long barrel slugs at .45720 and my carbine slugs at .45714. Here’s my cast bullets and results.

My molds are at .459 and I size down. My alloy drops bullets at 9 BHN.