200gr SMK

[KeithR41]

Has anybody loaded the 200gr MK in a .308. I would like to develop a SS load. I've read the theads discussing 180gr SP bullets but haven't found anything for the 200mk.

Keithr41

 

[ChadTRG42]

Re: 200gr SMK

What's your twist rate on the barrel? If it's a 1:12", it will not stabilize the 200 SMK at subsonic velocities.

 

[KeithR41]

Re: 200gr SMK

It is. I was thinking the same thing. Guess I'll go with something else.

 

[ATLRoach]

Re: 200gr SMK

I'm using them in a 1:10 twist with 9.7gr of Trail Boss.

 

[fast freddy]

Re: 200gr SMK

ATLroach what are the specs on your gun, i have been thinking about trying some subs in my 308, its a 21 inch LW barrel 10 twist. what kind of groups are you getting with your combo?

 

[ChadTRG42]

Re: 200gr SMK

For the common 1:12" twist, the heaviest bullet I'd go is a 180 grain SP with a flat base bullet. The 30-30 bullets work well, also.

 

[Strickland]

Re: 200gr SMK

A 1:12 will run a 190 SMK very well. Push to about 2625 fps. Would not go higher than that.

 

[ChadTRG42]

Re: 200gr SMK

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Strickland</div><div class="ubbcode-body">A 1:12 will run a 190 SMK very well. Push to about 2625 fps. Would not go higher than that. </div></div>
We're talking subsonics. Otherwise, the 1:12 will run the 190's at normal speeds fine.

 

[ATLRoach]

Re: 200gr SMK

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: fast freddy</div><div class="ubbcode-body">ATLroach what are the specs on your gun, i have been thinking about trying some subs in my 308, its a 21 inch LW barrel 10 twist. what kind of groups are you getting with your combo? </div></div>

24" LW Barrel. I'm getting .96" at 100yds

 

[Strickland]

Re: 200gr SMK

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: ChadTRG42</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Strickland</div><div class="ubbcode-body">A 1:12 will run a 190 SMK very well. Push to about 2625 fps. Would not go higher than that. </div></div>
We're talking subsonics. Otherwise, the 1:12 will run the 190's at normal speeds fine. </div></div>

Oops, my bad... I caught it now!