Big Bore reloading powder selection.

[skydiver386]

I've recently purchased several large caliber rifles in 416 Rigby, 458 Lott, 450 Rigby and others, and I need powder to feed them.

I have reloading manuals from Lee, Barnes, Woodleigh and several others, but 450 Rigby Data is limited.

RL-19 Seems to be one of the go to powders for these calibers, but the major retailers are all out if stock. Other powders listed are
H450
H4831
IMR4350
VV N160
AR2209

I've also seen Win 760 and Varget listed, but mostly light bullet for caliber loads.

What are powders you've had the best luck with in heavy for caliber loads with Swift A-Frames or Barnes X bullets?

 

[Hyde Hunter]

to start off with you will have a hard time finding Swift bullets they are always out of stock. For my Lott I used Rl7 but with only 400 gr bullets, you can try AA2230, AA2200, H335, you can also contact CEB bullets and request load data for the 458 Lott with their 470 gr Safari Raptor and 450 gr Safari Solid

 

[PHOENIX PHIL]

My .375HH loves IMR4350 with 300gr projectiles. I had a .416 Rigby that shot 400gr bullets with H4831 very well. Of the .470NE doubles I've owned, H4831 also worked very well with 500gr bullets.

Now on the .470NE, I've recently become a IMR3031 (much faster burning in comparison to H4831) with a foam backer rod wad. The downside of the slow burning H4831 is you use a lot of it and with that comes increased recoil.

 

[skydiver386]

to start off with you will have a hard time finding Swift bullets they are always out of stock. For my Lott I used Rl7 but with only 400 gr bullets, you can try AA2230, AA2200, H335, you can also contact CEB bullets and request load data for the 458 Lott with their 470 gr Safari Raptor and 450 gr Safari Solid

Oh I've had to beg, steal and borrow to get the few A-Frames that I have. They are easier to find Data for than the Barnes or other mono bullets.