Hi i was asking for some info from Rich Machholtz at Sierra about the possibility of a 7mm projectile up there with BC like the 240gr 30 cal and 300gr 338 and this is his reply
We just brought out the 175 grain 7mm MatchKing with a BC of .608 so I
don't see another 7mm long range bullet in the very near future.
If there is enough demand we'll build anything but we aren't there yet
with the really big 7mms.
So if every one gives Sierra a call or email asking for heavier projectiles for the big 7mm's and a BC over .700 we might have a chance of getting a 7mm projectile that will keep the 7mm in the hunt with the balistics from Sierra.
Why not just get some 200 gr ULD RBBTs from Richard Graves and be done with it. They are already available, proven and kick the hell out of the .7 BC your looking for.
I know shooting my lightweight 7mm AM loaded with this bullet at 3150 fps and comparing it side by side out to 1000 yards with my 338 Kahn loaded with the 300 gr SMK to 3100 fps with top loads, the 7mm shoots noticably flatter and is effected by the wind noticably less as well.
Yes it would be nice if Sierra would give us a heavy bullet option as well but don;t hold your breath. Good thing is that there is a good choice out there right now.
Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.
Hi Kirby i already have some 200gr Wildcats on order from Richard it would be great if their was also a comercial projectile that was up there as well as sometimes it is hard to get other projectiles in some countries and if your barrel does not like a particular brand you are out of luck. What twist are you using in your 7mm's with the 200gr i am looking at using an 8X68S RWS case improved and hopefully i will get them to 3000fps this is for long range F Class not hunting so it has to shoot under 1/2 MOA all the time and wind drift is a big issue and also recoil so if you step up to a 30 cal and use 240gr projectiles at that speed it becomes a lot harder to shoot them accurately as muzzle breaks are not allowed. Richard thought an 8.25 twist should be good. Also could you email me with your actual results as to the BC as i understand why they are not published it will give me a starting point to look at as my round will be slower the BC will also be lower.