I'm shooting a Knight LRH with Nikon BDC scope. Last year I was sighted-in; 3" group at 100 yds. I went to sight-in this year and couldn't get a good group. I'm using the same pellets and bullets as last year. I'm now going to try loose powder, and a couple of different bullets. Before I start the sight-in process, does anyone have any ideas what may be wrong and/or suggestions for correction. Thanks.

Ed

It could be many things from old pellets to a barrel that was'nt cleaned properly after last season. First check to make sure your barrel is fine. What did your bullet powder primer combination consist of last year? is everything the same? A 3" group is'nt that great at 100yds to begin with, mabey you had problems last year and now there getting worse.
Loose powder is the best way to start off, start with 90gr's and work your way up in 5gr incriments untill you find the best most accurate load, it usually falls inbetween 90-110gr's of powder, and remember NO COFFEE befor you shoot.
Success to you!
(BP)

BP:
What am I looking for to make sure my barrel is fine?

Ed

First of all, clean the rifle thoroughly. The bore should be shiny, even and smooth for the full length of it. Looking though the bore at a light should help. Check the crown of the rifling to make sure there are no obvious gouges/cracks/uneven wear in that area.

Double check your barrel to stock fit to see if there is now some uneven contact. Double check your scope rings and mounts to see that all is secure.

Clean the crap out of your breech plug making sure it looks as near to new as you can achieve.

Before loading with some NEW powder, make sure the plug and bore are completely oil free and dry. Use the exact same technique each time you load, swabbing first damp/then double dry between each loading. Use the same pressure as best you possibly can each time you seat your projectile and always seat to a witness mark.

That rifle should certainly do better.

Hold the barrel up to a light and look through it to see if you can see any rust or corrosion. Befor this is done make sure it is clean and dry. Im not saying it is the barrel but it is a good place to start off. Was it cleaned good befor you put it away after last season? If so it should be fine. Did you check to make sure your scope mounts were snug, do you have removeable rings that put your scope back to zero after your removed it and put it back on, if it was removed?
A simple thing as just changing Primers would make a difference in where your groups were from last year. Let me know how the inside of your barrel looks and we'll go from there.
(BP)

and its ok to use oil instead of bore butter right?

im gettin ready as well, jan 4th through the 17th

I'm working a 24 hr shift tomorrow, so I can't check out those items you mentioned for a couple of days. I'll let you know what I find. Thanks for the input.

Ed

As long as your use a oil like Montana Extreme Bore Conditioner or Montana Gun Oil, run a patch of either or a Oil just as good, then a dry patch and you should be good. I have used Bore Butter for years with no problems at all, I actually like the stuff, it works as well as anything else.
(BP)

What powder and bullets were you using??? Some combinations are just dead ringers with certain rifles...Knight rifles love the
300gr MZ Barnes and 100grs of Pyrodex or Goex...I've also had good luck with 90-100grs and a 250 Shockwave or SST...

As with any rifle with a scope, double check the screws holding the barrel to the stock and make sure to check the scope screws...

nchawkeye:
I was using 777 pellets (2), and Hornady SST 250gr bullets. I'll be checking the barrel and scope when I get home tomorrow.

Ed