I have a couple & use them both. One is a ruger fitthed with express sights which I like to use on wet days with 275 gr semi spts for big deer in heavy cover. It's a 100m rifle. I have even done the Texas heart shot on a nice red/elk stag with this with spectacular result. The other a win model 70 with 26" barrel has a 3x 9 x40mm scope & I only use 225 grn barnes X in it now. It might be ok for longer shots for some, but 300m is long for me. I have used a few 250 gn premium pills in these but found them too hard. Some of the greatest bullet failures seem to happen in this caliber, either too soft or too hard, so some thought needs to be given to their choice.