6.5 ss final design

[elkaholic]

We are getting close! Received the Whidden micrometer/bushing dies today and formed a couple of cases. GOOD NEWS! I was able to form from a 7 saum with ONE stroke if I was very careful and slow. I then trimmed to 1.96" and turned the neck to .295" (loaded round). The picture is this case loaded to 2.8" coal with a 160 Matrix. This will fit in a std. Remmy 700 box! The go gauge is supposed to be shipped today or tomorrow at latest. Then we chamber and try this baby out.........Rich

 

[trueblue]

Looking good

 

[liltank]

Is it wrong for me to say that you have me feeling all gooey inside when I look at this round?

 

[Shooter264]

Did you check runout after sizing? How was it? What brand brass were you forming?

 

[elkaholic]

Thanks True! You can be as gooey as you want Tank! I did not check the runout but the case will be fire formed to blow some of the taper out of the case which will complete things. The process so far is pretty easy. If I can continue to successfully resize in just one step, this won't be much more difficult than a std. cartridge. Once the shoulder is pushed back and the neck sized, you simply trim to length and turn the necks a little. It will probably shoot as well as say, an A.I., before it is formed......Rich
Using R.P. brass. 300 saum Norma is supposed to be available next month.....

 

[CogburnR]

Very nice.


I just picked up another M70 pushfeed in 7WSM...lightbulb

 

[elkaholic]

Very nice.


I just picked up another M70 pushfeed in 7WSM...lightbulb

Well, it very likely needs a new barrel......Rich

 

[etisll40]

For some reason the 270 wsm case looks the best for a 6.5 or 7mm?

 

[elkaholic]

For some reason the 270 wsm case looks the best for a 6.5 or 7mm?

It would be fine if you aren't trying to reconfigure it........Rich

 

[jakelly]

I am having a 6.5 SAUM built. Brass is the only drawback. There is a thread on snipershide about GAP getting incredible velocity, low pressure, and 3400+ rounds of barrel life.

 

[elkaholic]

I am having a 6.5 SAUM built. Brass is the only drawback. There is a thread on snipershide about GAP getting incredible velocity, low pressure, and 3400+ rounds of barrel life.

This may be a dumb question but what is GAP?

 

[barnesuser28]

This may be a dumb question but what is GAP?

Home - GA Precision Looking good Rich, excited to see what you can get out of her, a pm to you on its way.

 

[Terry Scott]

Rich
You have a great project here please hurry!!
Just ran the #s on comparing the ballistics on the matrix 160@3100fps bc 720 vs the 140 gr Berger @3200 fps BC 613
The extra weight and BC don't really give that much advantage
@ 1000 yds both bullets still carry over a ton of energy
With the 160 dropping 1.7 Moa more
Wind wise about the same
The 160 has 120 fpe
more energy both pretty impressive

 

[elkaholic]

Rich
You have a great project here please hurry!!
Just ran the #s on comparing the ballistics on the matrix 160@3100fps bc 720 vs the 140 gr Berger @3200 fps BC 613
The extra weight and BC don't really give that much advantage
@ 1000 yds both bullets still carry over a ton of energy
With the 160 dropping 1.7 Moa more
Wind wise about the same
The 160 has 120 fpe
more energy both pretty impressive

Thanks Terry.....I think where the 160 will really shine is the high sectional density. With a .264 diameter, say on an elk, this will give that skinny pill some big boy attitude! Closer up, the extra weight will allow enough bullet to hold together to do some real damage even on a shot that might be a little off. Also, at long range, the extra weight in the same thickness jacket will aid in expansion by exerting more force on the nose. With a little luck, I'll tell you what it does on a bear next month....Rich