White Mountain Carbine Loads

mtjsw · 11-25-2006, 11:52 AM

I am new to your forum and would like to ask a question. I have a WMC in 50 cal. with a 1:20 twist barrel. I have been trying to find a load for it and have been having little success. I have tried pr's extreme elite in 260 and 300 grain with a variety of loads and powders. i have tried GP bullets and Maxis also with a variety of powders and loads and have only come up with 4 inch groups at 50 yds. Any info or suggestions would really help.

cayugad · 11-25-2006, 12:09 PM

Welcome to the forum. You fail to mention how hard you're pushing all of this and whether you were swabbing between shots.

Personally I do not have a rifle with that twist. If I did I would be trying different conicals like Maxiball, Powerbelts, but I see you tried some Great Plains conicals. I really do not know what to tell you, only what I would try and it looks like you're on that track. Perhaps some powder charge changes would make a difference.

mtjsw · 11-25-2006, 12:28 PM

I was trying 80 to 100 grains with goex ffg, 777 ffg, RS, 777fffg, and APP ffg. Yes I was swabbing between shots and I did try without swabbing.

ALMECH55 · 11-26-2006, 12:42 AM

I have the same rifle. Mine is about 10 years old. I have had lots of good luck with 70 grains of Pyrodex RS and a heavy conical. I really liked TC Maxi in 470 grain but they stopped making it,,, or at least I can't find anyone selling it anymore. I use a 350 grain Maxi now and it shoots real nice tight groups I remember when I first bought the rifle I had tried 80 grains or more of the Pyrodex RS. I couldn't get tight groups no matter what bullet I used. So I used less powder and my groups were awsome and they still are even with my ageing eyes and open sights.

cayugad · 11-26-2006, 07:38 AM

Quote:

ORIGINAL: mtjsw

I was trying 80 to 100 grains with goex ffg, 777 ffg, RS, 777fffg, and APP ffg. Yes I was swabbing between shots and I did try without swabbing.

All of them different powders and you could not get it to shoot? Wow . I would knock the load down to 70 grains and start there. See if that makes a difference. Normally they are really good shooting rifles from all the posts I have read on them.

little-d · 11-26-2006, 04:42 PM

my wmc loves 451.dia 240 gr. xtp hollow points and the mmp sabot,with 100grs of777powder. with this load i get perfect shots. i have tried alot of other loads but this one does the best of what i have tried. i also got good grouping with the 300 gr xtp and the long petal mmp sabot.