bigrich wrote:Couple more pics
thats good shooting bigrich
bigrich wrote:Couple more pics
marksman wrote:bigrich wrote:Couple more pics
thats good shooting bigrich
SCJ429 wrote:Completed the initial load test today, it was windy with gusts around 25 to 30 kph. Obviously had a lot of horizontal dispersion. Best group had an ES of 20 and a SD of 9.5, speed averaged 2,950 fps. Best group size was .413, unfortunately they were not the same group.
SCJ429 wrote:I am way over the book value so use this with caution, using 47.7 and 47.9 grain of 2209 to get single digit SD. Hope to bring the ES down with some fine tuning. The wind was making things interesting but the standard 223 Tikka shot a group of .221 using 55 grain Noslers. It was my best group by far.
SCJ429 wrote:The humble Tikka T3.
bigrich wrote:
makes me wonder what a top line sako could do . i'll probably never own one. i have a A7 in 308 . . very accurate, made one hole for three shots @100 on the weekend with handloads. the finns know how to make a rifle don't they
SCJ429 wrote:If you don't shoot long strings and you polish the throat regularly then I don't see barrel life being particularly short. It will also depend on what is acceptable accuracy to you. If you need half inch then barrel life will be shorter that if you are content with one inch groups. You should be able to keep one shooting fairly accurately if you take care for about 2500 rounds. The pressure generated when shooting 120s at 2,950 is not particularly high.
SCJ429 wrote:High intensity cases like a 300 RUM can shoot 220 grain projectiles at pressures in the low 60,000 psi and with care you can get more than 1,000 rounds through them. The Swede only creates pressure in the low 50,000 psi with is much less likely to cause excessive throat erosion. Are you running a factory barrel? If you are looking for an excuse to move up to a aftermarket barrel you may have a fair bit of shooting to do before you shoot the factory one out.