Bad 40 grain groups

[greendrywall]

I shoot a Tikka T3 1/12 twist and it does not seem to like hot 40 grain loads, it will shoot hot 35 grain Bergers pretty good but thats it. I am quite stubborn and want to find a solution because I think 40 grain will be the way to go for coyotes etc. Would it help stabilize the 40 grains better if I dropped my powder charge a bit say from 28 grains to 26.5-26? As it stands my groups are flying all over the place.


What a great site, so glad I stumbled on it. Lots of knowledge on here!

[wirelessguy2005]

i don't think adjusting the powder charge is going to help much. The 40 grain vmax is a very long bullet to be shooting thru a 1-12 twist barrel. What you are experiencing is common for 40 grain bullets in a factory 12twist barrel. If you want to use the heavier bullets give the 39 grain sierra blitzkings a try, they are just a bit shorter and seem to stabilize in most factory barrels.

[DoubleUp]

Lots of 204 coyote hunters like the 35 and 40 Bergers. I believe the 40 Bergers are supposed to shoot okay with a 1x12 twist, and as wireless says most 1x12's will shoot 39 bk fine. The hardcore guys really praise the 35 Bergers.

[7mag]

There is also the 45 gr soft point from hdy it's quite a bit shorter than the 40 v-max and even the 40 berger.

[wirelessguy2005]

if you want a bullet specifically for Coyote i am going to be selling a 20 caliber 35 grain hollow point on my website very soon. I hope to have them ready to sell in the next 7 - 14 days. They will be very similar to the 35 grain bergers however they will have a smaller hollow point and a bit higher BC.

[zx10mike]

i have a tikka t3,to shoot the 40 grain bullets i had mine re barreled to a 1 in 11 now it shoots .30 or under after great expence i learned that the 39g eiera blitzkings tend to shoot better for the sake of a grain well worth a try before the expense of a new barrel the 39s shoot well with rl 10x.
good luck
the reason by the way is the 1 in 12 struggles to stabelize the 40 grains in some rifles as your rifle could actualy be 1 in 12.4 a lot of people say that one grain difference sorts it

[greendrywall]

Thanks for the info, I posted this after no luck finding 39 blitzkings in Canada but with enough calls I found 200 so I will give a try and hopefully everything will pan out!