Ever since I was a little kid, I have only dreamed about harvesting all 28 species for the Grandslam. I have my bow ready but I need to get a rifle. What is a good sized caliber for moose, bear, pronghorn, deer, etc. I need to know because I have decided to just take a break and try shooting all 28 Grandslam species. Do you think a .30-06 or a .270 would work well. Please reply. Thanx!

If you want just one rifle to complete the whole slam i'd get a 300RUM. It's probably the minumum u'd want for a grizz and it'd be quite alot of gun for pronghorn but it'd have u covered.

If I was going to kill all 28 species, I would use a .340 Wby. Mag. Good luck.

I'd recommend reading "One man, one rifle, one land" by JY Jones. He did it all with the same 30-06. BTW hope you got some deep pockets. The sheep alone could cost $100,000. I've hunted 8 taking 7 but at the high cost of sheep and polar bears, $25,000 - $30,000, 18 to 20 of them is best I can hope for. Which aint bad for a counrty boy from the south.

Good on ya Mark,
but the best advice I could give would be to move to British Columbia. I did. The caliber is much less important.
That way you could hunt grizzly, blackbear, couger
Stone sheep, bighorn sheep, dall sheep (plus california bighorn)
Rocky Mtn elk, Rosy elk, Canada moose
Mtn goat, Moutain caribou, buffalo
Mule deer, whitetail deer, blacktail deer (plus sitka blacktail)
I believe that is 12 of the slam, most just over the counter -unlimited tags. ( and a rifle is ok)
Plus toss in wolves, wolverine, bobcat and lynx, turkey.....................
good luck

WOW thats a tall order. I hope you can take a lot of time off. I also hope that you are independantly wealthy. The 270 or 30-06 would be well suited for the vast majority of the species, with the exception of the big bruins. If you have the resources to chase the dream of all 28 you can most likely afford more than one rifle, my list would be:

25-06 for pronghorn, whitetail, couse, sheepetc
300 mag either ultra or win for elk, mule deer,caribou etc.
338 win or 375H&Hfor bear, moose etc.

Thanks. I haven't been to BC yet, hope to in 2007, sounds like a great place. How hard is it to make a living?

As to the Slam I've taken
Elk (1)
Antelope (2)
Bison (1)
Black Bear (2)
Muskox (1)
Caribou (1)
Whitetail (60-70)
and have hunted Mule Deer.

Heres some photos of our "Nickle and Dime Adventures"
http://groups.msn.com/MarkandLaRita/huntingphotos.msnw?Page=1

Hey i forgot bc has buffalo too so eddited my post, that makes 12.
BC's economy is rockin as is all of canada's these days.
Most of bc is public and free access land.
Myself I have taken Dall and Stone sheep. (both over 40 inches)
several 6 by 6 elk
quite a few moose
caribou
several mulies and whitetails
several blacks and grizzlies
also wolves, wolverine etc
All on public land, all in general season and all self guided