Rate of Twist for Yellowboy?

[NHSHTR]

Hi,

I just bought a Uberti Yellowboy in 45 Colt with 24" barrel.

I'm hoping someone can tell me what the rate of twist is for this rifle (Uberti doesn't specify, but I sent them an email requesting it - still haven't heard back.)

I've been loading 250 gr LRNFPs ahead of W231, but was wondering if 200 gr would be better stabilized in that rifle in the range of 750 to 850 fps.

Thanks.

 

[dfariswheel]

It's easy to check.

Run a patch down the barrel for one complete rotation of a cleaning rod and measure the number of inches it took the rod to make that one turn.