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Discussion Starter #1
Hi
i have a tikka t3 lite .270 wsm with a vxIII 2.5-8x36 in sako optilock rings, and have recently started reloading it, but have been having problems getting velocities much over 2900 with a 140gr sst/ab projectile, i am told this is because of the rifle having a long throat, and cartridges seated out anywhere near the lands are too long for the magazine and the action, i am using ADI 2209 powder, which is roughly equivilent to 4350. i have just got hold of some ADI 2225, which is suppose to be equivalent to retumbo, can anybody suggest any ways to get more velocity? also can anyone suggest any good loads for sika deer, which are a little larger than whitetails, at long range, also a load for red stags at up to 350 yards.
thanks in advance for any help
Gary
 

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2900-3000 is about max for a 270 with 140 grain bullets in the first place, 2900 is the max with 53.1grns of 4350. Bullet jump can lower pressures and velocities, but if your magazine cant handle the longer bullets... then that can be a limitation. Do you need a quick second shot? Will turning it into a single shot hurt you? You might have to experiement with some different powders. I have used RL-22 in my -06 to get some pretty good velocities, or H414, you could try those. You can try and make some hotter loads... but step by step and watch for pressure signs. With some powders (such as H414) they will sometimes recommend a magnum primer to get faster powder burn... but this also means you have to step down your loads because of increased pressure.
 

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Hi

I had the same problem with my 96 6.5x55. Loading 120gr close to the lands will result
in the bullet and the brass not touching!

I load them to the same length as my 140gr. I used 43gr powder and it gave me 2200 fps.
I increased it to 44grs and that 1gr pushed them up to 2660. Another 1/2 a gr gave me 2720
and the last load of 45gr gave 2770.
I still get 1 inch and most times better groups even if the bullet is out of the case before touching the lands.
Sweet
 

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Discussion Starter #4
i am loading for the .270 winchester short magnum, not oconners old favourite
 

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Since you have a way to measure bullet velocity, use that for your guide. Increase your powder charge until you meet published velocities. It is pressure that creates velocity. Remember that highest velocities do not always mean best accuracy. The 270 WSM runs at very high pressures, so you will have to watch for over pressure signs too, but generally let your velocity be your guide. Work from your present load in .5 grain increments until you reach the accuracy you want or you reach max velocity. Bullet jump is not necessarily a bad thing. Roy Weatherby designed his guns/cartridges to have lots of bullet jump, with very good results.
 
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