Anyone here own a Gonic muzzleloader?

like2fly

Member
Joined
Mar 14, 2016
Messages
18
I have a 1991 Gonic Arms GA-87 50 cal. Seems like a quality rifle, with a 26" 1:24 twist barrel.

But the bore is really more like .497" (at least mine is). I heard that Gonic originally made them slightly undersized by design so you could only use their special made undersized bullets, which are no longer available. Every modern 50 cal bullet I've tried is too big to go down that skinny bore.

I've tried a few 44 (.429") and 45 (.449") bullets in the proper 50/40 and 50/45 sabots, and have found a couple of combinations that seem like they should work. At least they push down without too much effort, and seat well; but I haven't tried shooting them yet to check accuracy. I suppose I could also invest in an adjustable resizing die and size my own...

Just wondering if anyone else shoots a Gonic 50 cal, and what bullets they are using.
 

PBramble

Well-Known Member
Joined
Dec 14, 2017
Messages
119
Location
OKC
get a sizer and make your own. then you can shoot without sabots as well.
 

clock

Member
Joined
May 10, 2010
Messages
10
get a sizer and make your own. then you can shoot without sabots as well.
+1, and replace the cocking spring as you’ll have misfires with the factory weak spring, clock
 

John Co

New Member
Joined
Nov 17, 2021
Messages
1
Location
Massachusetts
I have a 1991 Gonic Arms GA-87 50 cal. Seems like a quality rifle, with a 26" 1:24 twist barrel.

But the bore is really more like .497" (at least mine is). I heard that Gonic originally made them slightly undersized by design so you could only use their special made undersized bullets, which are no longer available. Every modern 50 cal bullet I've tried is too big to go down that skinny bore.

I've tried a few 44 (.429") and 45 (.449") bullets in the proper 50/40 and 50/45 sabots, and have found a couple of combinations that seem like they should work. At least they push down without too much effort, and seat well; but I haven't tried shooting them yet to check accuracy. I suppose I could also invest in an adjustable resizing die and size my own...

Just wondering if anyone else shoots a Gonic 50 cal, and what bullets they are using.
PR Bullit makes Gonic sabots
 
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