Quoted:
I currently have a Beretta 92 and was wanting to
go a 1911 in 45 ACP for a home defense/family gun.
Planned on getting a 22 conversion and then working
the family up too 45 ACP.
I've also thought about possibly Magna Porting to
elleviate muzzle flip.
Thoughts on this?
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The 45 is a low pressure round and the bore is quite large while the case volume is relatively small.
The initial chamber pressure is low, and it drops rapidly as the bullet progresses down the bore.
So, there is very little gas pressure for the port to function by the time the bullet reaches the muzzle.
Bottom line, ports do not work on the 45 ACP.
(this is why ported race guns are usually 38 Super).
If you reload, you can create some very mild 45 ACP loads.
I load 200 gr lead SWC for my wife. Unfortunately, she easily outshoots me every time.
IMO, if you reload, I would definitely go 45 ACP.