Re: least temp. sensitive powder
well here goes, im a lontime quarter bore fan for deer hunting and even took my cow elk last fall with the 25. over the years i have obtained mostly built though the following 25's. 250 ai, 25-06, 25 x 284, 257 whby and now my own wildcat the 25 bobcat. about 2 winters ago i was sitting and my old mentors house 1 day and he showed me a 270 wsm case and said imagine necking this to a 25 filling full of ball powder be like launching a missle short fat case meaning. i jumped on the band wagon of contacting dave manson for a reamer, picked up a 270 wsm for the action being a magnum boltface and feed rails for the wsm. ordered a broughton #4 contour 10 twist along with a mcmillian edge stock i had sitting around. I asked manson if i could name it he said why not he has never done one for any one else yet. so with all being said i have a short action 257 whby. i only shoot 100 grainers out of a 25 because they have done so well for me. I settled in with the 100 sierra bt traveling at close 3600 1/2 moa. I had the speer at 3800 but backed off due to pressure from day to day. what is neat about this toy is with a 26" barrel using a short action its really no longer than a factory la with 24" barrel. I used the name bobcat due to i own a landscaping service using bobcat skid loaders and excavators. I did some reseaching and seen a 25 pronghorn thought the bobcat sounds better but that guys loading data for the pronghorn was so far out in left field or his chronograph was broke you know how that goes. also the 270 wsm brass is much cheaper than the 257 whby, no when it comes to wildcatting someone else has actually done it but i feel i have my own version though. If i can figure out to post pics i post it later. Someone needs to factory chamber this cart. it is the most efficient wsm out there. i can seat my bullets out and still fit in the magazine box where this becomes an issue with a lot of wsm's.