20br and 20bra for pdogs

[Tommie]

I don't own a 20 nor have I ever shot one, but it would seem a little short on range for prairie dogs. Do you use 20's in conjunction with something heavier? About what's the range of the 20's?

I’ve shot 17, 20, 22 and 24 calibers in prairie dog fields. Been doing it for years. All I use now are the 20’s.

 

[7315br]

Theres been a few that have done it to a 1,000 on P.D.
If you run the 55 Berger through there Ballstics calculator what a 55 will do in a 20BRA with a 100 yard sight in its 29-30" of drop at 500 yards pretty impressive.

My experience with the .20 cal 55 gr Berger is it works well for PD's at 700-800 yds (20 BR or .20/250). Past that it starts to pencil badly. To many drag-offs unless one makes a head-shot or breaks bones.

I built a .20/250 which easily made a 1000 yds +, but had the same issue with the 55 gr Berger. Best PD shot with that set-up was 1135 yds. Going to the .22-243 Imp. solved the problem.

 

[Gabe22BR]

Has anyone used Varget with 40’s in a straight 20BR?

Fill it to neck/ shoulder junction…

 

[Tommie]

Fill it to neck/ shoulder junction…

Thanks, Gabe
What kind of velocity should I expect with a 26 inch barrel?

 

[Gabe22BR]

It’s like H4350, RL 16, RL 17, IMR4064,

Can’t get enough in case to get above 3400fps w: the 55gr…
The 39/32, 40, 35gr ought shine though!!!

 

[Gabe22BR]

I’ve just dabbled in the light wts..
only using premium jacketed bullets- sierra, J4


Don’t know on amp jacket gravel…

 

[Tommie]

It’s like H4350, RL 16, RL 17, IMR4064,

Can’t get enough in case to get above 3400fps w: the 55gr…
The 39/32, 40, 35gr ought shine though!!!

Whatcha thinking velocity-wise for 40’s with Varget?

 

[Gabe22BR]

I gotta go look again- just dug three my paper work…

Whatcha thinking velocity-wise for 40’s with Varget?

text sent

 

[chuckshooter]

I would be very interested in that load.

My load in my 20 br with 40gr vmax's is 30.5 benchmark, 450 cci primers, lapua brass, 10t kreiger finished at 27" Borden br action. get's just over 4050 fps. I worked up a load with varget and then changed to benchmark because I could see I was going to run out varget.

 

[urbanrifleman]

My load in my 20 br with 40gr vmax's is 30.5 benchmark, 450 cci primers, lapua brass, 10t kreiger finished at 27" Borden br action. get's just over 4050 fps. I worked up a load with varget and then changed to benchmark because I could see I was going to run out varget.

Would you consider that a pretty mild load?

 

[806guns]

That would seem an obvious choice. The problem would be the availability of fast twist blanks. Where as with 22s and 6mm 8 twist barrels are very common.

I ordered one from bugholes. 8 twist mullerworks

 

[Gabe22BR]

30.5 is a MILD load.. should see good accuracy around there…

 

[urbanrifleman]

First 20Bra with 22bra twin for my local customer Pete. Savage large shank.

 

[strut64]

My experience with the .20 cal 55 gr Berger is it works well for PD's at 700-800 yds (20 BR or .20/250). Past that it starts to pencil badly. To many drag-offs unless one makes a head-shot or breaks bones.

I built a .20/250 which easily made a 1000 yds +, but had the same issue with the 55 gr Berger. Best PD shot with that set-up was 1135 yds. Going to the .22-243 Imp. solved the problem.

Oh

 

[urbanrifleman]

Fireforming targets from Pete in Tulsa. 20bra with 40bk and Varget.

This thing is going to smoke.

 

[Gabe22BR]

Ought be able to run them on up …4200 +…

 

[L.Sherm]

Gabe is right, I ran a 46 gr at 4050fps with R15 and it shot extremely well. If he uses a little faster powder I think he will be knocking on 4200.

 

[urbanrifleman]

Gabe is right, I ran a 46 gr at 4050fps with R15 and it shot extremely well. If he uses a little faster powder I think he will be knocking on 4200.

What was your fireforming load?

This is fireforming.

 

[L.Sherm]

What was your fireforming load?

I didn't fireform with the 46, I tested Badger Bob's 46gr bullets he was making.
This is fireforming with the 55 Berger

 

[L.Sherm]

I missed the fireforming part.
My fireforming load is .5-.6 less of RL15