The speed those over bores shoot is VERY hard on Throat life . A popular build used to be the 257 STW . Yup Real fast but max 4-600 rounds and the throat was gone and the barrel fire cracked !
JMO RJYeah the STW holds way more powder than the PRC or SAUM case. Do some googling on the 25 PRC or SAUM and I think you’ll be surprised. Lots of guys run these in the states, with great success. Even if a barrel is cooked after 1000 rounds, that’s more than the average hunter will shoot in his life. I wouldn’t run one for NRL or any sort of competitive shooting as yeah you’ll cook that pipe in 2 weeks. I have multiple “over bore” calibres such as the 22-284 and they’re fun.The speed those over bores shoot is VERY hard on Throat life . A popular build used to be the 257 STW . Yup Real fast but max 4-600 rounds and the throat was gone and the barrel fire cracked !
Expensive shooting now a days unless it’s just a 4 Hunting rifle .
I thought that would happen soon. Its great news. With the SAAMI approval of the 22 Creed it was just a matter of time.
I have a few boxes of those myself. Also not sure if he's still around, haven't seen him in quite a while. - dan
Had one of those for a while, after it lost accuracy (around 1200 rounds in mine) I rebarreled it to another hot rod. A 6mm-7mm Rem Mag Improved, called a 6mm Mach IV. It was a screamer of a round though. Like most heavily over bore cartridges, you have to be careful how hot you get your barrel. - danThe speed those over bores shoot is VERY hard on Throat life . A popular build used to be the 257 STW . Yup Real fast but max 4-600 rounds and the throat was gone and the barrel fire cracked !
Expensive shooting now a days unless it’s just a 4 Hunting rifle .
still have some 6.5 bullets I think, Richard's 75 grain .223 bullets were fantastic!
I can appreciate your doubt but the facts are the facts. Take some time and watch the ultimate reloader video I posted earlier on the cartridge (they got even higher velocities than I am getting) In fact he was getting 2900+ at 42grs of H4350. Your doubt may be predicated on the fact you live and shoot at a low elevation. Gavin at ultimate reloader shoots in the mountains and I live in the high plains of Alberta (my altitude is almost 1KM).
Had a 257 STW for a while. Barrel lasted less than 1k rounds before accuracy fell off. I ran it for a couple hundred more and then rebarreled it. Great hunting cartridge though. - danThe speed those over bores shoot is VERY hard on Throat life . A popular build used to be the 257 STW . Yup Real fast but max 4-600 rounds and the throat was gone and the barrel fire cracked !
Expensive shooting now a days unless it’s just a 4 Hunting rifle .
WOW ! Im surprised it lasted that long Dan - I was always gonnas build one but found the 257 WBee with 110 Accubonds was a good LONG RANGE hunting cartridge at near 3500 fps ! RJ
Well, I didn't shoot many strings through it at the range, and that helped. Sometimes with these really overbore cartridges it's a toss up between finding that most accurate load before you run out of barrel life. The 6mm Mach IV was a similar tale. As was the 7mm-378. - dan
Yup, when the barrels on the 25 STW, wore, they wore all the way to the muzzle. There was no question about setting back the shoulders and rechambering to get better accuracy for another 500 rounds.
