02-08-2015, 01:12 AM
In the history of both the 6.8 SPC and the 6.5 Grendel there has been quite a bit of discussion and "armchair" gunsmithing regarding the effect of twist rates on velocity.
In one particular camp, it's been claimed that differences in twist can account for up to 200 fps velocity gain.
Bryan Litz would say, "Uh . . . it's more like 1.33 fps gain per inch of barrel twist rate."
Link to his article.
Shooters: Arm yourselves with the facts in the face of amazing claims.
In one particular camp, it's been claimed that differences in twist can account for up to 200 fps velocity gain.
Bryan Litz would say, "Uh . . . it's more like 1.33 fps gain per inch of barrel twist rate."
Link to his article.
Shooters: Arm yourselves with the facts in the face of amazing claims.