I loaded some 150 grain ballistic tips today with 88 grains of 7828SSC and they chronographed at 3520-3545. The manual says they should be at around 3400. Is this unusually high for this load? I'm doing this with a 24" barrel on a 700 classic. My sons 270WSM was right on with his speed from a previous measurement so the numbers are right.Just looking for some insight on this. Thanks for the replies.PaLuke

I would think you are hard pressed to get 3500+ out of a 24". 88gr is a pretty warm load. Be careful. If you are getting 3400 to 3500 out of a 150 Nosler BT, you wil have VERY explosive results on game within 200 yds.

I was thinking the same thing and then got my sons 270 WSM to check the chronograph. I loaded 85 grs. of 7828 with a 175 gr. Berger and got 3142 which I thought was pretty close to what it should be but was really suprised with the 150 BT's. I'll try it again tomorrow and see if I get the same reading.Thank you for the reply....PaLuke

A 175 gr. Berger shot from a 270 WSM - huh??? Did you mean a different bullet weight than 175 gr. or a different caliber rifle?

Sorry about that. I meant the 175 Bergers out of my .300 weatherby. My son uses 130 gr. BT's in his 270 Short Mag and gets 3150. I used his previous readings to check the chronograph along with mine with the 175's.Thanks for the replies...PaLuke

I've got a couple of 300 wby's and can only add that the 150 load seems pretty hot. If the gun has no freebore and the brass is rem and not wby I can see this happening. BUT, the 180 grain load seems "right". It will be interesting to see if there is a "dup" to the 150 situation. I've run 89 I7828 under the same bullet in a fairly fast 26" barrel with wby brass and only got 3450.