Well,
I used the factory hornady 458lott load with the 500gr dgx to shoot a bunch of stuff this spring,
cape Buffalo 1 shot thru the heart frontal shot at 70 yards.
bullet penetrated about 2 feet- ended in the paunch. Shed its front end and all the lead- I haven't weighed it yet but it looks like it retained about 50%(edit to add: it weighs 341grs)- Buff died in about 20yards/10 seconds. This bullet never touched a bone and the beast died- but with anything other than a perfect shot, Or if I would of had to shoot thru the shoulder I'm not so sure the result would have been as favourable.
Kudu- shot with a texas heart shot (4 times)- not sure where the bullets ended up penetrated about 3ft- ran 150 yards and died.
Zebra's, I didn't recover any bullets from a couple of raking shots, penetration was 3+ feet
Impala -shot a bunch- 1 I remember specifically shot frontal @about 70 yards- bullet didn't exit. I know I didn't get as much penetration as I would of with an identical shot with @ 300wsm with 180 grain partitions.( I know this because I shot an identical shot with that load into another impala about 1/2 hr later and we found the bullet under the skin in the hind quarter.
I never ended up using the DGS for anything so have no comments there. My results from shooting the 500 gr DGX into about 10 different critters big and small leads me to say it will get the job done, but I won't be using them on game again.
All recovered bullets looked the same- basically no mushroom, front end broken off, most if not all lead was shed.
Performance was not even close to a Premium bullet like the swift/woodleigh/tsx. Partitions would of been a much better choice as well.