The chamber pressure of the 45 acp is higher than the 45 colt. Taurus does not recommend the acp round in the judge. So can it be done? Yes in some, but not per the factory guidelines. You risk gun and physical damage. , and chicagotrauma.
Taurus states that you should not shoot 45 acp from a Judge. Never shoot a high pressure or a +P/+P+ load.
Could the judge handle the 45 Auto?
If the Judge could safely handle the .45 Auto, Taurus would have already said so and removed the only advantage of the Governor over the Judge. If you can find cases, reloading the .45LC is very easy and lead bullets are cheap.
Is 410 ammo good for a Taurus Judge?
These ammo picks are favored choices by those who own the Taurus Judge. For the most part the .410 shells are not your best self-defense options if you are looking for a terminal load, although the #000 options can be quite damaging (as can the others in close range).
On that note, #00 and #000 weight options are available in a 2.5 inch shell. These are defined by 3 or 4 larger pellet loads and are considered the best close range defense option.
The exception to the No +P rule might very well be the Raging Judge. QUOTED from the Polymer Judge manual. By Taurus for +P use.
What size shell for 45 Colt Taurus Judge?
Shotgun shells are either filled with birdshot as a 2.5 inch size with various weights, or most buckshot as a 3 inch shell. Most Taurus Judges handle a variety of 2.5 inch shells, but as mentioned, the 6.5 inch barrel model does have 3 inch shell capabilities. The weight of your .45 Colt load will determine the velocity and energy of your round.