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Casting bullets for the .33 Winchester using a 338320 Lyman mold
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July 30, 2024 - 8:03 pm
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And so sometimes you have to pay the Piper.  The days of a decent $50 mold have gone the way of the Model A Ford.  (Zebulon and Clarence might say the days of a good $20 mold are long gone.). $89.26 shipped to my doorstep.

The description states it’s a gas check bullet.  What if you cast these bullets and don’t use gas checks?  My guess is accuracy might be affected.  How much?

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July 30, 2024 - 8:17 pm
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Your problem is not going to necessarily be just the accuracy.  Instead, if you load to standard velocity & pressure, you are going to rapidly “lead” up the bore, which will then cause accuracy issues.

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July 30, 2024 - 8:22 pm
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Okay, thank you.  I guess I’ll have to get gas checks.  That’s new for me.

I would have preferred a bullet that didn’t require gas checks—but beggars can’t be choosers.

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July 31, 2024 - 4:20 am
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mrcvs said
And so sometimes you have to pay the Piper.  The days of a decent $50 mold have gone the way of the Model A Ford.  (Zebulon and Clarence might say the days of a good $20 mold are long gone.). $89.26 shipped to my doorstep.

The description states it’s a gas check bullet.  What if you cast these bullets and don’t use gas checks?  My guess is accuracy might be affected.  How much?

  

It’s my understanding that this cartridge doesn’t lend itself to downloading but someday, good Lord willing and no more tornadoes, I’m going to try! As you may know there has been some success downloading gas check design bullets to a velocity that does not require a gas check. In many cases a GC design bullet can be used without a GC as long as bore condition, velocity, powder pressure curve characteristics and other factors are considered. There are also DIY alternatives to GC’s but that’s a rabbit hole I haven’t personally explored, much like the 33WCF.

I wish you well. I have no interest in the 33WCF unless I can download it to around 1200-1300fps. I’ll own one someday and hope to shoot it so am very interested in your project. Please keep us posted on your project!

Mike

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July 31, 2024 - 7:38 pm
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TXGunNut said

mrcvs said

And so sometimes you have to pay the Piper.  The days of a decent $50 mold have gone the way of the Model A Ford.  (Zebulon and Clarence might say the days of a good $20 mold are long gone.). $89.26 shipped to my doorstep.

The description states it’s a gas check bullet.  What if you cast these bullets and don’t use gas checks?  My guess is accuracy might be affected.  How much?

  

It’s my understanding that this cartridge doesn’t lend itself to downloading but someday, good Lord willing and no more tornadoes, I’m going to try! As you may know there has been some success downloading gas check design bullets to a velocity that does not require a gas check. In many cases a GC design bullet can be used without a GC as long as bore condition, velocity, powder pressure curve characteristics and other factors are considered. There are also DIY alternatives to GC’s but that’s a rabbit hole I haven’t personally explored, much like the 33WCF.

I wish you well. I have no interest in the 33WCF unless I can download it to around 1200-1300fps. I’ll own one someday and hope to shoot it so am very interested in your project. Please keep us posted on your project!

Mike  

Any suggestions as to a load using this 338320 cast bullet and a desired fps of 1200 to 1300?  Gas checks are an added expense and not cheap at about $44.95/1000 before sales tax and shipping.

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July 31, 2024 - 8:01 pm
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mrcvs said

TXGunNut said

mrcvs said

And so sometimes you have to pay the Piper.  The days of a decent $50 mold have gone the way of the Model A Ford.  (Zebulon and Clarence might say the days of a good $20 mold are long gone.). $89.26 shipped to my doorstep.

The description states it’s a gas check bullet.  What if you cast these bullets and don’t use gas checks?  My guess is accuracy might be affected.  How much?

  

It’s my understanding that this cartridge doesn’t lend itself to downloading but someday, good Lord willing and no more tornadoes, I’m going to try! As you may know there has been some success downloading gas check design bullets to a velocity that does not require a gas check. In many cases a GC design bullet can be used without a GC as long as bore condition, velocity, powder pressure curve characteristics and other factors are considered. There are also DIY alternatives to GC’s but that’s a rabbit hole I haven’t personally explored, much like the 33WCF.

I wish you well. I have no interest in the 33WCF unless I can download it to around 1200-1300fps. I’ll own one someday and hope to shoot it so am very interested in your project. Please keep us posted on your project!

Mike  

Any suggestions as to a load using this 338320 cast bullet and a desired fps of 1200 to 1300?  Gas checks are an added expense and not cheap at about $44.95/1000 before sales tax and shipping.

  

I’m sorry, Ian. My loading manuals are still offsite and I’m not going to SWAG a cartridge I don’t load. One concern is the case volume, the powder would have to be one that isn’t position sensitive or a filler would be required. If you have Snooky Williams’ book he may have a good place to start. GC’s were $35 +/- last time I bought any, I thought that was too high! 

 

Mike

Life Member TSRA, Endowment Member NRA
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Smokeless powder is a passing fad! -Steve Garbe
I hate rude behavior in a man. I won't tolerate it. -Woodrow F. Call, Lonesome Dove
Some of my favorite recipes start out with a handful of depleted counterbalance devices.-TXGunNut
Presbyopia be damned, I'm going to shoot this thing! -TXGunNut
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