I have a Tradistion Tracker 209 with a Simons 4x. It is not holding a good patern. I use 90 grains of Pyradix pellits 200 grain 45cal. bullet with sabot.

Switch to loose powder and try new sabot/bullet combo.

Is it a .50cal? If so, try the SST in 250-300 grain.

Something else you can do is... with the open sights, work your load up at 13 or 25 yards. Then you know the scope is not to blame. If it is shooting basically a very tight group at that distance, then put the scope back on.You now know the load is good. Sometimes, scopes fail. It is just an unfortunate truth. So if you know the load is good, and you put the scope on, then back up to the distance you want (once sighted in) and then try again. See if it is the scope or not. If you know the load is good and then once the scope is added the group falls apart, get a different scope.

If you have a 1/28 twist a bullet that is just under 2 calibers long is the closest match. That would be a 200gr 40cal in a 50/40 sabot or a 45 cal around 275 gr. quite often the 250 or 300 with shoot well with that twist I use 180 or 200 gr 45cal bullets when I want to shoot sabots in my 1/48 twist and 230gr [45]in my 1/38 twist. I have had to bed or relieve the stock on some Traditions so make sure that your stock has not warped and put pressure on the barrel. Lee

I suspect lemoyne is on the right track if that is a .50 caliber with a 1/28 twist. My one gun in that caliber/twist won't shoot .45 caliber 200 grain bullets worth a hoot. Shoots 240s OK, 250s better, and 300s best. Try a longer bullet.

Do you have the .45 cal Tracker? I know that for awhile (maybe to this day) Traditions .45 cal had a 1 in 20" twist barrel, which is not the proper twist to stabilize a lot of the most common projectiles in use. I think Precision Rifle (www.prbullet.com) makes some bullets that can be stabilized in the 1 in 20" barrel. If that is the case for you, I'd give them a call and see what they recommend.