303 Brit - 200gr cast

Just to update. I chronographed my 24.5 grains of 4227 and .313, 180grn gc cast. 1794 fps avg from my no1 mk3. I have used that on 200grn bullets too. Good accuracy and fun out to 250
 
I've found a really good and consistent load for 174gr cast-powder coated from Prairie Projectiles.

17.0gr of Blue Dot produces 1810 fps with very small SD and ES. Accuracy is ca. 1.75moa so far.

Prairie Projectiles specifies max 1800 fps on every bag of bullets.
 
I Dont Care About You said:
I've found a really good and consistent load for 174gr cast-powder coated from Prairie Projectiles.

17.0gr of Blue Dot produces 1810 fps with very small SD and ES. Accuracy is ca. 1.75moa so far.

Prairie Projectiles specifies max 1800 fps on every bag of bullets.
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Awesome. Always good to have back up loads. And bullet sources. I have about 250 cast left from jet...

What diameter are you running? Mine are 314 or 313 I think.
 
I Dont Care About You said:
I've found a really good and consistent load for 174gr cast-powder coated from Prairie Projectiles.

17.0gr of Blue Dot produces 1810 fps with very small SD and ES. Accuracy is ca. 1.75moa so far.

Prairie Projectiles specifies max 1800 fps on every bag of bullets.
Click to expand...

"PC only" on their price list, not sure what that means. Are you getting this accuracy at that speed with non gas-checked bullets? Just powdercoat?
 
hobophobe said:
All the ones I have bought from jet or rwtc are lubed and checked. Ready to go.
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Is same here - old school lube in lube grooves and copper (?) gas checks installed. But I am sure that I read that "powder coat" can be entirely different - bullet mold has a seat for gas check, but users just powder coat right over that and use like that - no gas check, even though bullet designed for one.

I have never done powder coating - and I do not reload for handguns - so is a thing that I am interested to read about - how powder coating replaces both the lube and the gas checks on center-fire rifle cast bullets. I no longer own a "lube-sizer" machine, although I have owned several in the past - I am just using the Lee (or similar Dragon Lube) tumble lube and the Lee sizing dies in my loading press.
 
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Potashminer said:
Is same here - old school lube in lube grooves and copper (?) gas checks installed. But I am sure that I read that "powder coat" can be entirely different - bullet mold has a seat for gas check, but users just powder coat right over that and use like that - no gas check, even though bullet designed for one.

I have never done powder coating - and I do not reload for handguns - so is a thing that I am interested to read about - how powder coating replaces both the lube and the gas checks on center-fire rifle cast bullets. I no longer own a "lube-sizer" machine, although I have owned several in the past - I am just using the Lee (or similar Dragon Lube) tumble lube and the Lee sizing dies in my loading press.
Click to expand...

I am pretty much "old school" - tumble lube and gas check the lighter cast loads, but manually rub some blue lube in the grooves for faster loads. Nothing says I wouldn't give powder coating a whirl. Sounds interesting, plus the idea of being able to increase the diameter sounds appealing. I have only ever used Lee sizer dies for seating gas checks. I am not a high volume caster or shooter. I like casting. I have a lifetime supply of gas checks and wheel weights/lino.

I always appreciate the positive posts on CGN. Not so much the negative ones! :p
 
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