20 practical questions

[jepp2]

What would be your expectations for accuracy of this cartridge?

Mine

 

[RegionRat]

@jepp2 that has to put a smile on the face of anyone who understands it....

BTW, the decimal point in the caption slipped. I'm pretty sure it wasn't 1.85" agg.

 

[Kevin1990]

Mine

View attachment 1488729

Sold!! Haha. Good shooting!
What twist rate is your barrel?

 

[jepp2]

What twist rate is your barrel?

Pretty sure that is a 12T, but I have them in 10, 11, and 12.

 

[jepp2]

BTW, the decimal point in the caption slipped. I'm pretty sure it wasn't 1.85" agg.

I just added all 5 group sizes together

 

[spaniel]

My bolt action 20P may shoot the smallest groups of any gun I own, I don't often measure but one ragged hole. The last gun I built was a 20P AR, I'm getting about .8MOA. Granted I'm also running mixed brass. I tested in the 223 upper for the same lower once and, surprisingly, I could not tell the difference between single brand and mixed. Perhaps that's not the case in a 20. Next I get a lot of new brass I'll see if it improves groups any.

 

[Kevin1990]

Pretty sure that is a 12T, but I have them in 10, 11, and 12.

Last question for you. Do you see any difference in accuracy in the 10 over the 11 or 12 twist ? I might do a barrel nut prefit, and the barrel is a 10 twist. Want to shoot 32 to 40gr. Just curious if it would over stabilize.

That question also goes for anyone reading this.

Thanks

 

[Tommie]

It’s a .223 Rem necked down .020”
Don’t over-think it

 

[jepp2]

Do you see any difference in accuracy in the 10 over the 11 or 12 twist ? I might do a barrel nut prefit, and the barrel is a 10 twist. Want to shoot 32 to 40gr. Just curious if it would over stabilize.

I've never noticed any difference the twist makes on accuracy. 10T will not be an issue for any bullets. And my 12T stabilize everything I have shot. I guess I have an addiction for the 20's. I shoot 204 Rugers, 20 Practicals, and 20 Bobcats. Here is how the Bobcat shoots.

 

[Dgd6mm]

IF I was so inclined, and may be one day, I would order me an Urbanrifleman Wilson barrel in 20 Practical.
I believe he has 10 twist. I put one together for a buddy of mine on a Savage action. I've been trying to get him to let me borrow everything to give it a try..

 

[Kevin1990]

IF I was so inclined, and may be one day, I would order me an Urbanrifleman Wilson barrel in 20 Practical.
I believe he has 10 twist. I put one together for a buddy of mine on a Savage action. I've been trying to get him to let me borrow everything to give it a try..

That’s the exact route I’m heading. That’s why I was curious about the 10 twist. Good to hear!

 

[cb186]

@cb186 I see the cutout and a side charger style handle.
Can you explain a little more?

Also, is your set-up compatible with a brass catcher that mounts on the gun, or do you use something else?

Manually operated AR.