Nomosendero
Well-Known Member
Wow
Averaging 2948
I've shot two whitetail deer at about 250 yds with a 300 weatherby mag using the same bullet as the OP. Both performed very poorly. While the deer dropped dead in their tracks, the bullet never expanded and had a pencil hole in and pencil out. Both shots were quartered away into the boiler room and the sonic boom from a very fast traveling bullet liquefied most of the lungs, but I was disappointing with the exit hole. I use 180 target in my 7 LRM with excellent results however. I switched from the 215 to the slightly smaller berger hunting bullet and saw much better expansion on the 300 weatherby mag. Not the most empirical evidence, but I'm a stickler for evaluating my kills and damage inflicted and felt lucky I made perfect shots on these animals as there would not have been much of a blood trail to follow if they didn't go right down from an overbore large for species chambering. Seriously zero expansion. The fluke might be that I didn't hit any bone on entrance however. Between ribs on both deer. Regardless, I switched bullets. Probably better for thicker skinned animals or shoulder shots as already pointed out.
Ha. My jump is likely larger. I've been meaning to measure it, but was happy with a low pressure load and its accuracy as was. I got lucky on the second load attempt. I seated the bullet as far out at the maximum of what a hornady die would fit under my extended yolk arm on a forster press. I actually photographed this and sent to forster and told them the extended yolk is not long enough for all dies but not to pirate the thread. I have a big jump as most people do with weatherby mags. I'm not a big fan of these long throated overbore chamberings partially for that reason.Hey you guys thanks for all the info on the 215's.
Got to the reloading bench yesterday and after some checking I think my rifle smith has the bore too deep. With the 215's at max magazine length 3.6 I'm roughly .200 off the lands. I think he misunderstood what I wanted.
OK with that, what kind of jump are you guys dealing with and whats your opinion? Gonna load some different powder weights and shoot through the chronograph then see if one of the loads will stay tight before I go and talk with the smith. He showed me one of his test targets using a 168 gr bullet and it was about a 3/8 inch group 5 shot so it may be good with all the jump will see!
Ok, that could be pretty good with that caliber. With my 300 WSM / 10 twist Krieger I stopped at 215 gr. with superb geoups, so no interest to go up. But now I'm corious to give a try to the 230 as well. Good shooting!
In my opinion to make the wsm worth it you need 3.2".What speed did you get with the 215 and what was your COAL? Trying to figure out if it's worthwhile to get a wsm barrel cut for my action or if my 2.95 mag length means I should just build a win mag.
In my opinion to make the wsm worth it you need 3.2".