I have two of them a 50 and a 54cal. both the stainless versions. I have owned the 54 for 20 years and the 50 for 14 years.



I used the Calbela's 209 conversion kit in the 54 it is supposed to be Canadian made and works.

I still use the #11 caps on the 50.

Both are very accrete with about any thing you can stuff down the barrel.
I use 80 gr. T7 with a MMP green sabot and a 300gr Speer gold dot in the 50 cal.
In the 54 I use 100gr of T 7 a MMP purple sabot with a 50cal 300gr Speer HP gold dot bullet.

You must keep the bolt clean, most ignition failures comes from not cleaning the bolt, To do a proper cleaning you have to take the bolt down.
I bought the Remington bolt take down tool from Gander Mountian.




I always use this Remington dri lube in the bolt so it doesn't freeze in the cold.



Yet I was still having issues when the temps dropped below -10 getting a first strike ignition with both systems.
Lots of differing information on weight of bolt springs. I just switched both rifles to 29 pound Wolfe springs, no problems since even at -30 below.

Is a simple job to do.



Here is where I wrote about the spring switch.

http://www.huntingnet.com/forum/blac...ng-change.html



Al