7mm stw
- Thread starter whisky
- Start date
My hunting load does 3300 out of 24" with 7828. Just for the record I had 2 other ones and stopped at 3300. They had 26" barrels. I'm useing the same charge so maybe this barrel is a little quicker? Either way thats plenty fast, you deffinately need premium bullets at this speed.
RL25 gets me 3200 fps with 160-162 out of a 24" barrel. - dan
I have owned 6-7mm STW's over the past 12 years or so. Two had 24" barrels, and 3 had 26" tubes. One custom Pac-Nor barrel was 27" long. In the shorter barrels, I was unable to get 3300 with the 160/162 grain bullets, but all the longer barrels would get 3300 or a bit more. My favorite powder for velocity was H5010, where around 86-90 grains, depending on the individual chamber, was the ticket. Also working well were: Reloder 25, Vihtavuori N170, Retumbo, and AA8700. The STW seems to be a "happy" chambering, accuracy wise. I never had one that was not superbly accurate, and they are a laser beam with a 160/162 grain bullet, making hits at 500 quite do-able.
The 160 arrives at 500 with a ton+ of residual energy as well. [just for those who feel x amount of energy is important!!] Regards, Eagleye.
The 160 arrives at 500 with a ton+ of residual energy as well. [just for those who feel x amount of energy is important!!] Regards, Eagleye.
- Location
- Calgary, AB
Would the 162gr Hornady hold up at those speeds? I certainly agree with the accuracy of this round. Never seen such a easy round to load for.
I never used anything to hunt with in my STW's but the 160 Partition, and I had no issues at short or long range. I believe that I recovered only 3 bullets out of a dozen head of game shot. [Mostly Moose & Elk] The rest were passthroughs. Regards, Eagleye.
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
Has anybody tried US869 with 160-162 gr. bullets ?
News flash boys, plain old 7828 generates lots of speed. You don't realy need the ultra slow powders. Was shooting off last years hunting ammo last time out. Got one group at .34" have tons of sub 1/2" groups at 100 and sub 2" at 300 with this load but it won't average that.
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
how is it for temperature sensitivity ? Ill be looking to work up a load for Barrens Land Caribou hunting next winter so -40 here I come.
I have owned three 7mmstw rifles,and I was able to reach 3300fps with 160gr bullets in two of them.However,my favorite load is the 140gr mrx,followed by the 140gr ttsx.Both can safely be driven at 3500fps out of 26" barrels.
I wouldn't feel overly comfortable firing a 160gr bullet at 3300fps out of a 24" barrel.
I wouldn't feel overly comfortable firing a 160gr bullet at 3300fps out of a 24" barrel.
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
My best loads were with RL25. - dan
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
Yeah funny coincidence (Oh look Bobby-Joe we found more warehouses full of old surplus ball power
). I still have a bit of H-870 Ill try and do a side by comparison over the chrony for the heck of it. I bet velocity is pretty close.
I thought US869 was little bit slower ?
Bla, bla, bla. I wouldn't feel overly comfortable fireing 140s out of my STW. Thats what a 270 is for.
Bla,bla,bla.A half dozen elk,a moose,a bighorn,three pronghorn,a mountain goat,and over two dozen deer weren't comfortable after being hit with 140gr bullets out of my 7mmstw rifles.
Not one of them made it fifty yards after being hit,and most dropped on the spot,or within a few yards.
Then again,I wouldn't own any 270 myself.
Ooooh, thems fightin' words, lol. With the right bullet 140s will work fine on most NA game. I use 160s in my STW because they happen to give me the best groups so far, and they work well. I wouldn't hesitate to use a good 140 though, even in a lowly 270. - dan
