6 BR

[kochie]

going to use the rifle for coyotes want to shoot bullets 70 to 80 grains what twist of barrel would you guys suggest. maybe powder & load also this will be a winter project.

 

[Ccrider]

12tw 8208, 4895 or N135. Some use N133.

If you think you may want to shoot heavier bullets like 88 bergers or 87vmax go with a 10tw. It will shoot them and also shoot the lighter bullets accurately.

 

[RussellJ]

going to use the rifle for coyotes want to shoot bullets 70 to 80 grains what twist of barrel would you guys suggest. maybe powder & load also this will be a winter project.

I have a Bighorn Arms TL3 chambered in 6BR with a 22" 7-1/2" twist Proof Research carbon fiber barrel. I went with a .055" freebore so I can shoot some of the lighter bullets. The rifle with the scope weights 8lbs and couldn't be happier with this setup for varmint hunting. Currently shooting 70grn Nosler BT bullets at 3200fps with 32.0grn of IMR 8208XBR powder. I also shoot 80grn #1515 Varminter bullets at +/- 3000fps with 30.0grn of the same powder and, I have been testing the 80grn ELD-VT Hornady bullets with excellent results with the 30.0grn 8208XBR powder.

 

[Clancy]

12 twist, N135. Tough to beat.

 

[kochie]

12 twist, N135. Tough to beat.

12 twist, N135. Tough to beat.

12 twist, N135. Tough to beat.

I have a Bighorn Arms TL3 chambered in 6BR with a 22" 7-1/2" twist Proof Research carbon fiber barrel. I went with a .055" freebore so I can shoot some of the lighter bullets. The rifle with the scope weights 8lbs and couldn't be happier with this setup for varmint hunting. Currently shooting 70grn Nosler BT bullets at 3200fps with 32.0grn of IMR 8208XBR powder. I also shoot 80grn #1515 Varminter bullets at +/- 3000fps with 30.0grn of the same powder and, I have been testing the 80grn ELD-VT Hornady bullets with excellent results with the 30.0grn 8208XBR powder.

12 twist, N135. Tough to beat.

 

[kochie]

ok thanks guys will a 12 twist stabilize a 87 v max ?

 

[boltfluter]

8 twist will give more options in case your choice of bullets will not shoot. 87 Vmax in an 8 twist drives tacs!
Paul

 

[Dgd6mm]

^^^^^^^^^^^^^

 

[SKWERLZ]

8 twist will give more options in case your choice of bullets will not shoot. 87 Vmax in an 8 twist drives tacs!
Paul

^^^^^^^^^^^^^

^^^^^^^^^^^^^^

 

[urbanrifleman]

8 twist will give more options in case your choice of bullets will not shoot. 87 Vmax in an 8 twist drives tacs!
Paul

I honestly have not seen that. Maybe I had some bad bullets.

 

[NC/Br Shooter]

ok thanks guys will a 12 twist stabilize a 87 v max ?

Not really, 1.5 moacat best

 

[kochie]

Not really, 1.5 moacat best

ok 10 twist might be best for 87s

 

[kochie]

ok 10 twist might be best for 87s

you think a guy with a 10 twist and a 87grain v max can hit 3300 fps ?

 

[Ccrider]

Not sure about the 3300 speed but I have shot a lot of 87Vmax out of a 10tw using 30.5gr of Varget with excellent results group wise at around 3000fps.

 

[kochie]

well 3000 is is fast enough coyote won't know the difference.

 

[Clancy]

you think a guy with a 10 twist and a 87grain v max can hit 3300 fps ?

No, not even close

 

[kochie]

well 3000 is is fast enough coyote won't know the difference.

accuracy is king

 

[kochie]

accuracy is king

is there a 70 75 grain bullets that have as gooor better BC than the 87 v max ?

 

[X Count]

is there a 70 75 grain bullets that have as gooor better BC than the 87 v max ?

Don't think so. Even comparing the 87gr v max to the new 80gr VT the 87 is NOT far behind and some are saying the VTs can be fussy due to their balance.

Trying to get higher BC with a lower twist doesn't really work. To get the BC it's going to be long, even if it's light, so you need the twist for the length.

88gr Berger is one that's supposed to stabilise well in a 12 twist but still have good BC.

 

[Clancy]

is there a 70 75 grain bullets that have as gooor better BC than the 87 v max ?

Why are you worried about BC in a coyote rifle?