Re: 338RUM-338Edge or 338Lapua?
all are almost ballisticlly equal.
shorter than the edge by a tiny bit. Runs the same numbers as the edge and about 50fps slower than the lapua. it fits a standard Action better than the other two. Bullets fit the mag better than the Edge without modifacation. factory round benifits. fits standard actions for lightwieght rifles.
ballisticlly the same as the .338 RUM, others will argue but i get 2760-2825 depending on the load with a 300 grain SMK out of my RUM. Wildcat. still a great round.
a bit faster than the Edge or RUM (about 50fps) but at the sacrifice of needing a bigger action. I feel not enough gain for the added cost in velocity. Excellent brass available.
If going light wieght I would suggest looking at the RUM of .338 NORMA. If $$ is no issue I would go custom on the Norma.
If going with a Heavy Rifle you should look into bigger cases like Lapua AI, the new Lazzeroni (can remember the name), .338-.378, .338 Kahn, .338-.416, .338-408 Chey Tac, .338 Allen mag. Of the big boys I would go with the Allen Mag if money was no option.