A frame with that "defect" could likely be repaired by a good gunsmith, using a steel feedramp insert:
http://www.egwguns.com/1911-parts/st.../instructions/
I strongly doubt you'll have any issues with CMC mags. They're usually a smidge cheaper than ETMs as well.
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ETM's have a longer tube and are designed for 8 rounds. The 47D is an 8 rounder in a 7 rounder tube.
Folks throw around the "Wilson 47" term pretty loosely. There are different models of Wilson 47 mags and it makes a difference which one you're talking about.
In full size mags, the 7 round 47 and the 8 round 47D use the same tube length, but different followers and springs. The full size, 7 round, 47 is still one of the best mags in the Wilson line-up. The full size, 8 round 47D, is probably the worst mag in the Wilson line-up. It's not a bad mag, but in every group, no matter how good the group is, there has to be a worst.
They are, but the CMC mag that is comparative to the Wilson ETM is the CMC RPM mag, and those are priced similarly to the Wilson ETM. Both have an extended length tube.
CMC RPM https://www.cmproducts.com/view_cart.asp?catid=26
Wilson ETM https://shopwilsoncombat.com/1911-El...oductinfo/500/
I've honestly never had trouble with 47Ds, but I treat them like expendable items. When they fail to lock back on empty, they get dumped into the rebuild box. When I get a few of them in there, I order Tripp Super 7 kits and rebuild them.
I'm on my last three 47Ds now. I just ordered a half-dozen ETMs and Tripp kits to rebuild the last of the 47Ds.
Where are these inexpensive multi-packs of ETM's at? I'm finding them for $32-$35 per magazine but can't seem to do better than that.
“If you know the way broadly you will see it in everything." - Miyamoto Musashi