How about a high BC 8mm bullet?

[Blkram]

I have not heard about the thickness of the jacket on the 220 gr SGK, but I know that they (Sierra) beefed up the jacket on the 215 gr 338 SGK for better weight retention and reliable penetration on larger game with the additional velocity of the 338 Win Mag. I would think that they would have done so too for the 220 gr SGK for the 8mm Rem Mag.
From what I have read about the 8mm Rem Mag over the years, most hunters were using it for moose and elk...and IIRC Boddington was using it too in his pet 8mm Rem Mag for hunting larger game.

In the 7MM STW, I had great on game performance on elk and a host of other game with the 160 gr SGK bullets, including my 7x7 elk at 475 yards, before Federal switched over to the 160 gr AB. I still have a good supply of this ammo and will still use it for elk and other large game.

I would not hesitate to use the 220 gr SGK out of the 8mm Rem Mag on an elk, even out to 500 yards.

 

[FOTIS]

Just a little 8mm bullet comparison

220 Hammer Hunter
220 Sierra Game King

 

[JD338]

Just a little 8mm bullet comparison

220 Hammer Hunter
220 Sierra Game King

That Hammer looks to be a slippery one.
A 220 gr AB or ABLR would be the ticket.

JD338

 

[FOTIS]

Well BC for the Sierra is advertised as .521
The Hammer is estimated at .537

I am thinking I have to shoot the hammers at long range to establish an accurate BC. Visually (and I know it does not work out that way always) I am thinking over .600 BC

As for the Accubonds I was not able to break 2 MOA at 100 yds. Same as my 378 Bee with the krieger on it and 260 Accubonds. Nothing under 2 MOA.
Swapped to 270 LRX Barnes and Bingo. Under 1/2" all day.

 

[8mm Enthusiast]

Unfortunately I need repeaters. Great bullets though! I use them in my 375 BAS. 350 gr Lazers at 3250 fps.

Can't the Cutting Edge bullets be seated deeper starting with the minimum load with the recommended OAL and seating deeper from that point on while watching for pressure signs until you get to a point where they can feed from magazines?

 

[FOTIS]

They advise to seat at the groove for optimum performance. I tried once to seat deeper past the groove (as advised by the owner just to see) but it did not work out. It was a while ago using 30 caliber bullets

 

[8mm Enthusiast]

They advise to seat at the groove for optimum performance. I tried once to seat deeper past the groove (as advised by the owner just to see) but it did not work out. It was a while ago using 30 caliber bullets

What happened? Was the accuracy bad?

 

[FOTIS]

Pretty much...... horrible!

Also tried the Raptors with the tip in my 378 Bee I had years ago. I could not break 1.5" with a Krieger barrel.

The only awesome (and ) acceptable load I found with Cutting edge bullets was with the CE laser in my 375 BAS. (Cheytac IMP) . Single feed bullet but the action is so long I can still fit it in my Magazine.

I think this is 5 shots. It was 5 years ago.

 

[FOTIS]

For comparison purposes.....Even though we are getting off the 8mm track.

 

[8mm Enthusiast]

Pretty much...... horrible!

Also tried the Raptors with the tip in my 378 Bee I had years ago. I could not break 1.5" with a Krieger barrel.

The only awesome (and ) acceptable load I found with Cutting edge bullets was with the CE laser in my 375 BAS. (Cheytac IMP) . Single feed bullet but the action is so long I can still fit it in my Magazine.

I think this is 5 shots. It was 5 years ago.

Did you switch up the powders and charge weights after seating deep?

 

[FOTIS]

Of course. They did not like that groove inside the neck. Only way I can explain it.
This was with 30-378, 300 RUM etc. Again this was a few years ago.
I was not going to spend that kind of $$$ just to try them in my 8mm Rem Mag.

 

[8mm Enthusiast]

Of course. They did not like that groove inside the neck. Only way I can explain it.
This was with 30-378, 300 RUM etc. Again this was a few years ago.
I was not going to spend that kind of $$$ just to try them in my 8mm Rem Mag.

Makes sense. That groove inside the neck was probably messing with the flow of gasses.

 

[FOTIS]

I guess or the bullet is not seating squarely? Who knows?

 

[8mm Enthusiast]

I guess or the bullet is not seating squarely? Who knows?

Were you using used brass and did you anneal the necks?

 

[FOTIS]

I am pretty systematically anal when it comes to my loads. If the brass is not virgin then they will be annealed at a minimum by 2 firings. I followed CE President's Daniel Smitchko's advise on loading them with the groove in the neck so they can fit in the magazine.

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