Some more velocity tests, .45Colt reduced loads

[Pulp]

As promised I went back out to the range today with 3 more loads to test. All loads are 10 grains of Goex FFFg, topped with cornmeal, and various bullets. All shot from a Walker with R&D conversion cylinder.

150 grain El Paso Pete Big Lube Bullet:
574
567
554
538
564

180 grain Buffalo Ball-et:
528
521
539
558
532

230 grain ACP bullet
494
518
485
469
492

Just out of curiosity I also loaded 5 more Ball-ets under various powder charges, + cornmeal if needed. Here's the results and a video of that test.
10 grains 539
20 grains 783
30 grains 961
35 grains 993
40 grains 1057.

Unless a person just really likes WartHog loads, 20 grains is plenty sufficient for CAS. Anything over 35 grains will violate the SASS 1000fps rule.

https://www.youtube.com/watch?v=GEZDvPWN1RI

 

[Crawdad1]

Great information Pulp!!! Thanks for posting and going through all the work that you did.

 

[Pulp]

It ain't work when it's fun!

 

[BCRider]

I'm amazed at the speed you're getting with only 10gns worth.

I've been wondering just how fast my C&B guns are going with the 30gn charges behind the regular round ball. I must be right up there near the limit.

I really need to get my own chrono set up and try out some of this stuff.

 

[Pulp]

I was surprised also. I was also surprised the 150 grain bullets were faster than the 140 grain round ball. I reckon the flat based bullets seal the bore better than the RB.

 

[rodwha]

And I'd think the friction of a greater bearing surface created more pressure.