7 Saum length

[Twistedtrucker1]

Ok now that I have decided on the counter for a Tikka prefit 7 Saum I have a few question looking for guidance on twist rate and barrel length maybe free bore new to this so debating over 24-26 inch barrel and what’s the recommended twist rate i plan on shooting 150 grain up to 175 ELDX but maybe I’ll stick to the lower grain bullet do I need to mess with free bore to shoot 175 ELDX out of a tikka .

 

[Kimber7man]

For up to 175 I’d go with a 8.5 twist. And did….

 

[Twistedtrucker1]

For up to 175 I’d go with a 8.5 twist. And did….

Ok thank you what do you recommend for length is 26inch too long and could I get more velocity

 

[mxgsfmdpx]

I had a 20” McGowen 8 twist stainless barrel on a Tikka action that shot the 175s very well.

 

[waspocrew]

Ok thank you what do you recommend for length is 26inch too long and could I get more velocity

I have a 1:8.5 twist as well. I went with a 20" barrel since I knew I'd be using a suppressor the entire time.

26" barrel is fine - not my preference, but it's up to you and your hunting style to determine if that would work for you.

 

[Twistedtrucker1]

I had a 20” McGowen 8 twist stainless barrel on a Tikka action that shot the 175s very well.

Did you have to mess with free bore at all ?

 

[mxgsfmdpx]

Did you have to mess with free bore at all ?

I bought it as a used barreled action. I think the smith was told it was meant to shoot those specific bullets during the build.

 

[Twistedtrucker1]

I have a 1:8.5 twist as well. I went with a 20" barrel since I knew I'd be using a suppressor the entire time.

26" barrel is fine - not my preference, but it's up to you and your hunting style to determine if that would work for you.

Thank you appreciate your reply

I bought it as a used barreled action. I think the smith was told it was meant to shoot those specific bullets during the build.

ok cool

 

[N2TRKYS]

My 7 SAUM is a factory Remington Model Seven SS with a 22” barrel that’s 1:9.25(I believe). I shoot 160 grain Accubonds 2950 fps. I like it.

 

[Kimber7man]

Ok thank you what do you recommend for length is 26inch too long and could I get more velocity

I’m at 22”, but I also use a suppressor

 

[Twistedtrucker1]

I’m at 22”, but I also use a suppressor

question dose the length of the suppressor increase your velocity?

 

[Dave Thomas]

Mine is a 24" Bartlein with an 8.7 twist. From 8.5 to 9 twist Wil work fine.

 

[wind gypsy]

0.200” ish freebore is good for the 175s

 

[Kimber7man]

question dose the length of the suppressor increase your velocity?

No idea. I have never shot this rifle unsuppressed.

 

[Ishootgunssometimes]

Anyone have an 18 inch barrel? Twist?

 

[Krumfola]

Yeah I’d like to know some velocity numbers from an 18” as well. I’m going with a SA and planning to shoot the 162eldm, really hoping for 2750-2800.

 

[Krumfola]

Update…

18” hunter contour CRB (8.5 twist)
Kelbly Atlas Lite
Manners UC+
Hawkins DBM and rings
Trigger Tech
Ultra 7
S&B Klassik 6x42 with 3.2mil turret
8.8lbs loaded

With 64.5gr of H1000, I’m getting 2740fps from a 162gr ELDM in ADG brass with 40 rounds down the barrel. I feel certain I’ll be at or above 2800fps once it’s broken in.

 

[PanhandlePilgrim]

I have a 1-8 twist with a 26" barrel. I wish I would have done a 22 or 24 especially now that I have a suppressor. I'm running 180 bergers at 2860 and 4831sc and tinkering with a 180 ELD at 2900. If I were to do it again though i'd build a 7-300wsm