I'm sure it has been tryed and probably discussed on this board, but I will ask again. Has anyone here had any experience with necking the .300 WSM up to .416? If so what kind of results did you get? Thanks

[ 08-14-2002, 17:31: Message edited by: Jeremy ]

The Lazzeroni Maverick, which is the .30 Patriot necked up to .416, should be a very close cousin to the .300 WSM necked up to .416....maybe just a little less as most Patriots should beat the WSM with a 180gr bullet by 50 to 100fps. I would guess somewhere around 2300fps+ for a 400gr bullet and that should be plenty.

Check out these
http://www.heavyexpress.com/shcartridges.htm
They are within a whisker of being an exact duplicate.

Jeremy, I spoke to Mark Bansner (Bansner's Rifles) a few days ago... he's very nice guy. He's doing an entire line of WSM's up to 470... he told me he's getting 2,400 fps with the 510 gr. 470... I don't know the bbl. length and am just reporting what he told me... he's in love with the WSM's... that's not unusual as I'll bet they're generating a lot of business!

BA

Jeremy; The 350 Rem ,slightly improved, and necked to 416 (the 416 Express) will do 2450 in a "long" short action (Model 70 or a med Mauser) with a 22" barrel with 300gr bullets. 360gr hard cast FN lead can be driven to a max of 2350 in my rifles. Since I'm limited to a COL of 3.10(in the Winchester), I've never tried the loooong 400gr's. Bet I could get 2200 or so. You should get more velocity with the 300WSM case - but you'll still have to watch the COL if its in a "short" action. The Express sure is fun to play with!! Try the 416/300.