Ruger 45 Colt and Lyman 454485

[cabezaverde]

My 45 colt cylinder for my Blackhawk run large in the throats, all of .454".

Picked up an old sc Lyman 454485 ata a show yesterday, which casts about 457" and runs about 270 grains in my alloy. Almost a light 45-70 bullet.

Anyone use this boolit and have any data, maybe with 2400 or something like that? I only found one piece of data in an old Lyman manual - 10 grains of unique.

[9.3X62AL]

No time with Lyman #454485, but LOTS with #454424 and 454190. At 270 grains its weight is less than 10% heavier than #454424. If it was me in your spot, I would look at data for #454424 and start 10% under those recipes, knowing all along that in a Ruger BH you have a surplus of strength as a "firewall".

[Grapeshot]

Ditto!

[Rico1950]

How about data for the RCBS 45-270-SAA? that'll work. Begin at starting loads and work up.

[USSR]

I shoot Mihec's 270gr .45 bullet sized to .455" in my S&W 25-5. With 2400 powder, I use 18gr for about 1050fps. Great whitetail medicine. With your Blackhawk, you can certainly load more powder than I use, if you are so inclined.

Don

[Wolfer]

In my RNV I run 9.5 grs unique behind the 452-424 which gets me something over 1000 fps. I'm not familiar with your boolit but the 452-424 takes almost a grain more powder to get to the same velocity as the Lee 452-255 RF because of setting farther out of the case.

[Win86]

In my Ruger BH's both cylinders were very tight so after boring them .45225 they both shoot Mt Baldy 283 grain lead boolits terrific, better than I can hold them. Load for both is 16.5 of #9 for 1075 fps and 1060 fps. 18.0 of 2400 does almost as good using this bullet and the RCBS 270 mold.

win86