20" 5R rifled barrel bullet weight

[Solaction]

What do you think would be the largest bullet weight a 308 with 5R 1-11 rifling and 20" barrel could stabilize?

 

[Gord0]

Need the twist rate of the barrel to determine that.

 

[reeldawg]

I would think 175s for sure. You could try heavier.

Jay

 

[jpd676]

I'm shooting a 20" Reminton LTR with a 6 groove 1-12 and it stablizez the 208 Hornady just fine. I'm shooting at 7000 ft elevation and the elevation will make a difference. I think Berger has a stability calculator that might help you.

 

[Kansaswoodguy]

http://www.bergerbullets.com/twist-rate-calculator/

Try this

 

[Pappabear]

I have that gun and I shoot 175's all day long. 168's do just as well. Mine is in 308 too, so I had no interest in shooting heavier than 175 because I like to balance velocity too.