pushing a GMB in a "traditional" rifle
06-05-2009 | 11:19 AM
#1
Thread Starter
Dominant Buck
Joined: Feb 2003
Posts: 21,193
Likes: 0
From: Wisconsin
pushing a GMB in a "traditional" rifle
While the barrel is on a traditional rifle, there is nothing really traditional about this rifle other then the ignition.
The rifle is a T/C Renegade but the barrel is a stainless steel Green Mountain Barrel with a 1-28 twist. Same thing basically as you'd find on a Knight rifle. The scope is a $49.99 Traditions illuminated 1.5-6x40 mm with some Traditions quick release rights. It works very good actually. And in low light, you can turn on a switch and the cross hairs glow red.
The load I was shooting was 110 grains of Pyrodex RS. RWS caps, and a 300 grain .44 caliber Hornady XTP in a green Harvester Crushed Rib sabot.
It was 74 degrees today. As the barrel heated up, the group began to move up and right. I was swabbing with alcohol ever second or third shot sometimes. I was kind of pleased. Then to prove the heat was causing this group, I let the barrel and myself cool down. I swabbed it clean, adjusted my POA lower and shot for the center of the target. Not to bad. The scope does need some adjustment.
I then swabbed the barrel clean with some Rusty Duck Black Off and let the barrel cool for fifteen minutes. I shot a couple other rifles in the mean time. I then wanted to see how hard I could push a Barnes MZ Expander. I figured in loose powder about 125 grains of loose (as much as my measure would allow) should equal three pellets. So I loaded 125 grains of Pyrodex and a 250 grain Barnes. The first three are real good, then as the barrel heats up, the group moves up and right..
That Barnes load would really pack a punch. The rifle and scope behaved perfectly. This was only 50 yards for all shooting, so its not a big deal, but where I live.. this is a long shot.
The rifle is a T/C Renegade but the barrel is a stainless steel Green Mountain Barrel with a 1-28 twist. Same thing basically as you'd find on a Knight rifle. The scope is a $49.99 Traditions illuminated 1.5-6x40 mm with some Traditions quick release rights. It works very good actually. And in low light, you can turn on a switch and the cross hairs glow red.
The load I was shooting was 110 grains of Pyrodex RS. RWS caps, and a 300 grain .44 caliber Hornady XTP in a green Harvester Crushed Rib sabot.
It was 74 degrees today. As the barrel heated up, the group began to move up and right. I was swabbing with alcohol ever second or third shot sometimes. I was kind of pleased. Then to prove the heat was causing this group, I let the barrel and myself cool down. I swabbed it clean, adjusted my POA lower and shot for the center of the target. Not to bad. The scope does need some adjustment.
I then swabbed the barrel clean with some Rusty Duck Black Off and let the barrel cool for fifteen minutes. I shot a couple other rifles in the mean time. I then wanted to see how hard I could push a Barnes MZ Expander. I figured in loose powder about 125 grains of loose (as much as my measure would allow) should equal three pellets. So I loaded 125 grains of Pyrodex and a 250 grain Barnes. The first three are real good, then as the barrel heats up, the group moves up and right..
That Barnes load would really pack a punch. The rifle and scope behaved perfectly. This was only 50 yards for all shooting, so its not a big deal, but where I live.. this is a long shot.
06-05-2009 | 12:22 PM
#4
Boone & Crockett
Joined: Jan 2004
Posts: 12,823
Likes: 5
From: Eastern PA
RE: pushing a GMB in a "traditional" rifle
You da man Dave - Nice shooting. If it ever stops raining here when I ain't working I'll get out and shoot my new stainless GM barrel I got for my Silver elite Hawken.
I was having some trouble getting that barrel into the Hawken stock! Couldn't get it in far enough to put the wedge pin in. I had to put a little shim under the barrel lug. I was a little afraid to bend it thinking that maybe the screw holes wouldn't line up.
I was having some trouble getting that barrel into the Hawken stock! Couldn't get it in far enough to put the wedge pin in. I had to put a little shim under the barrel lug. I was a little afraid to bend it thinking that maybe the screw holes wouldn't line up.
06-05-2009 | 02:20 PM
#5
Boone & Crockett
Joined: Apr 2007
Posts: 10,918
Likes: 1
From: River Ridge, LA (Suburb of New Orleans)
RE: pushing a GMB in a "traditional" rifle
Well Cayugad, with that Barnes Expander loadany Moose or Bison that wander by your stand will be in big trouble.Good shooting. As for thetraditional issue,I'd bet old Jim Bridger would have given quite a fewbeaver pelts for a stainless scoped sidelock. 
My Browning B-78 25-06 has a light sporter weight barrel and will put the first three shots on a dime, but ifI keep shooting steady each shot after the third onewill be another one-quarter inch high/right from the last one. It's very predictable that way.
My Browning B-78 25-06 has a light sporter weight barrel and will put the first three shots on a dime, but ifI keep shooting steady each shot after the third onewill be another one-quarter inch high/right from the last one. It's very predictable that way.
