Jasper1573
Member
- Joined
- Dec 28, 2010
- Messages
- 320
Today, I was shooting in a 500 yd F-Class match. My first sighter shot on a 10 inch metal plate was about 4 inches at 6 o'clock.
My scope was adjusted 7.5 MOA up to compensate for a 300 yard zero. About 7 or 8 shots into the string of 20, I dropped the elevation adjustment down 1 click to 7.25 MOA to compensate for barrel and chamber heating. Of the first string of 20, they were all in the 9 and 10 rings with a few inside the X ring.
While later talking with another shooter, he remarked that maybe I needed to have the rifle stock bedded and the barrel floated. I explained to him that the stock came with an aluminum block from the factory (HS Precision) and that the barrel of the rifle is free floated from the factory (Remington 700 5r in .308 Win).
He persisted in a very nice way that vertical stringing is usually a symptom of the barrel in some way having a binding tension on it. I replied that I believed the issue was an unfouled barrel that upon fouling and heating, caused the ammunition to shoot higher due to heating in the chamber after several rounds had been fired.
Do you think that there may be an issue with the floating of the barrel once it heats up and thereby putting some tension on it during firing?
My scope was adjusted 7.5 MOA up to compensate for a 300 yard zero. About 7 or 8 shots into the string of 20, I dropped the elevation adjustment down 1 click to 7.25 MOA to compensate for barrel and chamber heating. Of the first string of 20, they were all in the 9 and 10 rings with a few inside the X ring.
While later talking with another shooter, he remarked that maybe I needed to have the rifle stock bedded and the barrel floated. I explained to him that the stock came with an aluminum block from the factory (HS Precision) and that the barrel of the rifle is free floated from the factory (Remington 700 5r in .308 Win).
He persisted in a very nice way that vertical stringing is usually a symptom of the barrel in some way having a binding tension on it. I replied that I believed the issue was an unfouled barrel that upon fouling and heating, caused the ammunition to shoot higher due to heating in the chamber after several rounds had been fired.
Do you think that there may be an issue with the floating of the barrel once it heats up and thereby putting some tension on it during firing?