Copper Monos - How to choose the right weight(and maybe caliber)?

I'm looking at hunting Mule Deer and maybe Elk in the Western United States; California or perhaps Montana. Gun will be a 7mm RM (with a 26 inch 1 in 8 twist barrel) and max distance will be 400 yards (I'm not comfortable shooting any further yet). Top considerations at the moment are Hammer Hunter 143, Cutting Edge Lazer 145, or Apex 117 (the 117 strikes me as being a little light).
I am using the HH 146 in my 7mm Wby Accumark, and Dad uses the 150 TTSX in his 7mm Wby. If you want to go a bit heavier they will work very well with your 7mm RM and current twist.

I have a faster twist 7mm Wby that will use the 169HH if I ever get around to finishing that rifle.
 
Gday I've been trying to stay away from conflict but I can't stand by & potentially see a critter be potentially lost & while I will state I will say the following is a little theory based which I don't like but I have the facts to base it with a little certainty but I will accept if I'm wrong & apologise wholeheartedly


I note this post by frank
I'm looking at hunting Mule Deer and maybe Elk in the Western United States; California or perhaps Montana. Gun will be a 7mm RM (with a 26 inch 1 in 8 twist barrel) and max distance will be 400 yards (I'm not comfortable shooting any further yet). Top considerations at the moment are Hammer Hunter 143, Cutting Edge Lazer 145, or Apex 117 (the 117 strikes me as being a little light).
& I agree the 117 afterburner is to light so if mark takes the following to heart so be it or he can learn & make adjustments the choice is his
& here goes the theory as I have not shot the 117 in 7rm
So here goes on my theories the afterburner have a velocity limit & while I can't say the exact number as that would require a lot more work I can vouch the pills under high resistance & high velocity fail & if we look @ potentially what the RM should be able to push this pill @ it will past the velocity of consistency & a high probability of failure & the critter more likely to do this is a elk & while if we hit in the crease it will kill you do the pin of the shoulder quartering to you @say 30/70yard your into a bingo raffle ( I would need actual velocity to work out ranges & im theory on elk as substituting for hybrids I've shot & other like critters )

I would stay with your thoughts originally franko21 & shoot what pill you want & if you can guarantee you'll stay off bone in a elk go for the afterburner but if it's that way you go don't search for top velocity as then you'll potentially be safe

I think it's better if I start a new thread as I think it would be better than derailing this thread
Just bare with me we have got major floods in Tassie & I've got animals to put down & infrastructure to fix while helping some other people out

No proof read & please I mean no malice just trying to stop a potentially bad outcome
Cheers
 
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