This was my first outing in a long time.Range very busy so no real time to fine tune. Shooting off sand bags with rear of gun on shoulder no vice used. Weapons today T/C Prohunter Nikon Omega.....T/C triumph Nikon Omega......Rem 300win mag VXIII.
The Triumph's first time out used (2)777 pellets 250SW..Barnes 300XTP....Gun bore sighted and only shot at 50yds. Great gun shot tight groups. No problem with 777 fowling only put 10 or so shots thru her. Rem 300win mag thats my rifle so as always gun tearing holes at 100yds. Now to the show stopper. From the first time I shot the gun until today its been 3 pyrodex pellets and a 250SW. Thats what the scope hook up calls for. Well after reading many forums on here It seemed the 100gr was the average with a few using 130gr. So only having pellets with me I went with 100gr 777 and the same 250SW. As you see the gun made one hole at 100yds(3shots) just lower then I like. Now what do I do? Set the gun to shoot 100grs and reset the scope or keep 150gr. I always seem to get a flyer and its me not the gun. I might get a 150yd shot hunting but thats the max where we go. Hope everyones Labor Day was a good one.
Chuck

A group like that i would stick with 100 grains .and adjust the scope . I am not a Mag Load fan . I have only used 100 grains of pyrodex , 90 grains of BH209 and now use only 85 grains of 777 and get groups like yours but i can only use a 1x scope here. so i shoot at 50 yards for groups . I tried 100 grains of BH209 in my encore with a 26'' barrel and had powder all over the snow in front of me ?? Make me wounder how much powder is not being burned and going on the ground with Mag loads . The other day i shooting and thought i missed the target with shots 2 through 5 , i had one hole . i aimed #6 a 1' to the right to see , it hit 1'' to the right of the other 5 shot hole . I was amazed of the group my encore was doing with 85 grains of 777 and the .25 acp conversion . But that was at 35 yards but still it put them in the same hole .

If you are sure you won't want to shoot over 150 yds, I'd sight it in 2-3" high at 100 yds and a mid shoulder hold should cover you at all intended ranges. I don't typically like sighting that way but for the purposes you describe I think that would work fine.

I'd have to agree with others.I am pretty sure the Mag. load will not benefit you that much.Stay with 100 Grains.

Accuracy to me is always more important then velocity. I'd adjust the scope. Accuracy like that is just a real plus. Nice shooting.

Sight in for the best load accuracy is most important for longer range for one thing it won't affect your 150yd mark that much shoot it and see how much. The way Spaniel describes is the way a lot of people sight in and it works well as it extends your point blank range. Lee