I had a Winchester Model 100 semi-auto in .284 Winchester, several years ago. It started jamming, and in the days of having a young family, I just couldn't afford to keep something that wouldn't work, so I got rid of it. /ubbthreads/images/graemlins/frown.gif I would like to have it back, even in the same condition.
About 3 years ago, I bought a new Savage 16FLSS in 7mm-08 Rem. and sent it to SharpShooter's Supply to have it rechambered to .284 Win. It cost me $166.00, shipping included, to have the rechamber job and some other work done. Yeah, I know, the 7mm-08 is a great round, with a proven track record, and a better selection of factory ammo, BUT I don't use factory ammo in any centerfire, so that is a moot point.
Ever since I had the Model 100, I had wanted a lefty bolt rifle in .284, and this was the only reasonable way to have one. Melvin Forbes makes/made his UltraLightArms rifles in lefty .284, starting at $2400.00. .............. I rest my case.
I am loading 58.5 grains of Reloder 19, with Win Lr primers, and a Speer 130 SPT. Accuracy is okay,7/8" or so.
Velocity is in the 3050 range.
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Is your A-Bolt original? I was not aware that Browning had ever chambered the .284 . This cartridge is one of my favorites, although I may not use it as much as I use my other rifles.
A Ruger 77 in .284 Winchester is a collector, and worth a bit of money!!