Originally Posted by Roc
Originally Posted by coyotewacker
[quote=Tackdriver22250]

I'am having reamers being made for a (10 mm) .400" in a 240 Weatherby cut to 1.8".....Cutting Edge Bullets 165 gr. Maximus around 2500 fps....

10mm Maximum that sounds like a good way to go.
Would like to here how that turns out.
Got my 458x1.8 tuned in.
57Gr of RL-7
OAL 2.80
350 Gr Barnes TSX FB
Shot two over the Chrony 2097 and 2096
Sighted at 150 yds
2" high at 100yds with a 7/8' group
2" low at 175 Yds with a 1 3/4 " group
4 1/2" low at 200 yds with a 3"group
Groups were only 2 shot.
Son in Law is going to use it for late doe season.


I like your 458x1.8" was going to build one....its smart design for a straight wall cartridge using belt for head spacing.....

You should try some Cutting Edge Bullets .458 258 GR.SOCOM Brass Flat Base Raptor...they are deadly will shoot flatter and little less recoil they been used on a bunch of North American game and African up to cape buffalo ...Lil'Gun powder first choice second choice Enforcer should be a good powders close to a full case don't compress powder... seat bullet with two bands in case to get more capacity....should get close to 2400 fps....

https://cuttingedgebullets.com/452-258gr-flat-base-raptor

Also a great bullet Cutting Edge Bullets. 458 260gr Rifle Maximus

https://cuttingedgebullets.com/458-260gr-rifle-maximus-50ct

I shoot these for practice and plinking will shoot to the same point as the CEB 458 258 GR. SOCOM....Hornady 45 Cal .458 250 gr MonoFlex®...

https://www.hornady.com/bullets/rifle/45-cal-458-250-gr-monoflex#!/