1) Anyone know what powder Remington is using in SAUM? Factory loads in my rifle, 300 SAUM, are 180 fps+ faster than I can reload them too.
150 gr factory - 3430 fps handloaded - 3250 fps
165 gr factory - 3260 fps handloaded - 3110 fps
180 gr factory - 3130 fps have not tried yet
2) Bullets in 300 Win Mag for hunting and paper punching
What experience can I leach off you guys in the 180 gr bullet class? I can't decide on 180 gr AB vs 180 gr BT. The Accubonds only cost me $4 more per box than the BT, but is the extra-beefy construction needed in a 300 Win mag? All loads out of Finnbear with IMR 4831 shoot under an inch, but 74.5 gr had an ES of 4 and shot in same hole. The velocity was in the 29xx.
Are those the velocities you measured out of your rifle for the factory loads??? If so they are smoking fast in my opinion.
I would try Rl-19 or H-4831 for the 150 to 165 gr bullets and Rl-22 and Magpro for the 165 and heavier pills.
As far as the 300 Wm goes, depends on what you are hunting. I have used the 180 gr BT on large northern deer here in Montana out of my 300 RUM with great results, I suspect you would have no problems at all in the 300 WM.
Now if your hunting elk or other heavy game, go with the Accubond!!
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I hate to ask you this question, what chronograph are you using? If it's a Chrony Chronograph there is the possibility that will show your velocity readings being higher than normal.
This is what Remington says it should be... close...
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It is a Chrony, but it gave those velocities consistantly over the entire box. It has proven accurate on my bow, pistols, and every rifle I have shot through it and compared with Ohlers (SP?). I will shoot it next time the factory ammo at 300 yds to get an idea of its trajectory to double check the velocity values with a ballistics program. The ballistic chart I made using the velocities it gave were a little off at 500m. The bullets printed 4 inches high at 31 clicks of elevation, almost 8 MOA.