tkstae
Your Remington should be able to shoot 1' 1 1/2" groups at a hundred without a problem....
Weaknesses of the Remington....
1. The bolt -> the bolt needs to be cleaned after shooting several rounds and at the end of the season for sure...
2.The hammer spring supllied on the original bolt is MARGINAL - it works well, usually, when it new but decreses in operation over time. The spring needs to be replaced with a new #26 spring - makes all the difference in the world. Especially if you continue to shoot #11 caps. (make sure you are shooting #11 mag caps - IMO Dynimit Nobel's 1075's are the best.
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=16583&title=BLITZSCHNELL+ STRIKER+SPRINGS
Scroll down to:
969-000-175
26# fits Remington 700 Muzzleloader
$8.49
The next thing I would do would be to a get a 209 conversion itfrom Cabels. This Canadian conversion is far superior to the Remington 209 kit.
Couple of questions here... did you Remington come with a 209 hammer and a Remington 209 nipple? My original 24" Remington only came with a #11 and a musket nipple - the newer 26" Rem came with a Remington conversion. IMO - it is terrible way to much blow back...
Here is the kit I would recommend - you do have to have a little mechanical ability to make the switch but the directions are really good and you decide to go this way and let me know if you need some help making the change - if you buy this conversion the need for a new hammer spring becomes a moot point it will come with what you need.
http://www.cabelas.com/cabelas/en/templates/links/link.jsp?id=0006644214451a&type=product&cm Cat=search&returnPage=search-results1.jsp&QueryText=remington+conversion&am p;N=4887&Ntk=Products&Ntx=mode+matchall&am p;Nty=1&Ntt=remington+conversion&noImage=0
If you do not have a Remington bolt tool this is really a handy little product - it really make bolt dis-assembly easy...
http://www.remingtonle.com/axx/gunparts.htm
Accuracy... There are several things that can cause an accuracy problem but...
The very first thing I would do would be to really clean the barrel to remove as much old material as I could. There are really good bore cleaning products out there. Get the bore all the way back to raw metal and then do a bore polish with JB bore compund.
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=1161&title=J-B%7e+BORE+BRIGHT
Speer is making an excellent bullet, that is not as expensive as others. The Gold Dot. The .452 300 grain Gold dot in an MMP HPH-24 sabot with a 100 grains of T7-2F makes a real good combination - of course the is nothing wrong with a Barnes.
For your son it is awful hard to beat an Omega even the Z5 Omega...
Hope some of this helps...
Keep asking questions...