Originally Posted by akshooter
I'm planning to build a 458 hunting rifle. I'm considering using one of the full length ultramag cases and necking it up to 458.
There are several existing wildcats based on this concept such as the 450 Howell, 458 African express, and the 450 Vincent Long to name a few.
My concern is that using the 404 Jeffrey diameter case and necking it up to 458 doesn't leave much of a shoulder for headspacing.
Do any of you have direct experience with this particular type of wildcat or know anyone that has?
What about a .458 AccRel based on the .300 RUM case(I think) although I think cases are now made for this.From memory it'll spit a 350/400 gn pill out at about 2400fps.
I've shot 1 of these and also a .500 AccRel and they'd both cover most things African but if you start using anything in 500gn be prepared for a rough day on the bench as these things will give you a Wetherby Eyebrow and a big love bite on the shoulder if you get a bit sloppy in your handling/shooting technique and after about 5-10 shots you start to lose interest real quick,regards