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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 g. SMK Terminal Performance
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 369368" data-attributes="member: 505"><p>Try 7828 with the 250 grain. Start with the load your book lists and go up from there. My data over 40 years is far more extensive than the handbooks. I am listing top velocities you can acheive with most rifles without liability concerns they have to deal with. Most of there loads concerning weatherby cartridges in particular are not max with a freebore rifle. Many custom barrels are out there with no freebore in wby chamberings. So many max loads listed are not max if your rifle has freebore. You will gain 18-22 fps per inch of barrel with the 340 wby on average depending on the burn rate of the powder used.</p><p></p><p>I think the 340 wby and 338 win mags are best served with the 250 grain bullets at more than 300 fps faster than the 300 grain. Overall performance is better within the ranges these rifles are most capable. After a few hundred yards the 300 would catch up with it in velocity but the 250 shoots much flatter and will drop elk size game at beyond 1000 yards. If I was setting it up to shoot 1000 yards I would shoot the 300 grain. I am talking about most average hunting situations I feel the 250 would be a better choice.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 369368, member: 505"] Try 7828 with the 250 grain. Start with the load your book lists and go up from there. My data over 40 years is far more extensive than the handbooks. I am listing top velocities you can acheive with most rifles without liability concerns they have to deal with. Most of there loads concerning weatherby cartridges in particular are not max with a freebore rifle. Many custom barrels are out there with no freebore in wby chamberings. So many max loads listed are not max if your rifle has freebore. You will gain 18-22 fps per inch of barrel with the 340 wby on average depending on the burn rate of the powder used. I think the 340 wby and 338 win mags are best served with the 250 grain bullets at more than 300 fps faster than the 300 grain. Overall performance is better within the ranges these rifles are most capable. After a few hundred yards the 300 would catch up with it in velocity but the 250 shoots much flatter and will drop elk size game at beyond 1000 yards. If I was setting it up to shoot 1000 yards I would shoot the 300 grain. I am talking about most average hunting situations I feel the 250 would be a better choice. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 g. SMK Terminal Performance
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