T7 question?
09-06-2010, 07:19 AM
#1
Typical Buck
Thread Starter
Join Date: Aug 2009
Location: Downwind, New York
Posts: 578
T7 question?
I've been shooting the T7 pellets and noticed that 2 Magnums(red box) shot way outside the 3" group that I had with 3 of the 50gr. Regular(black box).What gets me is that the Box of magnumT7 doesn't show a #of grain,just says to use 2 pellets for a magnum load,yet the regular T7 pellets are measured in grains.Am I missing something?Is that the difference in ffg and fffg?well I don't think I'll be using the MagnumT7 pellets anymore and may ditch the pellets altogether.Let me ask (not that I'd use it) but do they make the"magnum"T7 in loose powder?
09-06-2010, 07:52 AM
#2
Boone & Crockett
Join Date: Aug 2004
Location: Idaho
Posts: 11,703
PREDATE
It is widely consider that the 2 Magnum pellets are comparable to 120 grains of loose T7.
Remember the original T7 pellets are not really equivelant to 50 grains of T7 - they are loaded down to equal 50 grains of real BP or Pyro.
Shooting 2 T7 mag pellets brings you to some manufactures maximum load suggested in their rifles. You are effectivlely shooting 150 grains of real BP/Pryro. So in effect you have moved from shooting about 125 grains of BP to shooting 150 grains of BP - There should be movement in your groups.
I consistantly shoot 110 grains of loose T7 from my Rems and I am very pleased with the results.
If I can I would highly suggest that you make the move from pellets to loose - much easier to work up loads - much cheaper to shoot.
Then - depending on which 209 conversion you have you could even move to BH if you can afford the powder and I would say if you are OK shooting the cost pellets - then BH would be an easy move for you. I still prefer to shoot T7-2f and only because of cost.
If you have installed the Canadian 209 conversion - you can shoot shoot BH but you can not use the hottest primers - they creat to much pressure to get through the flash hole. I shoot Cheddites and I am sure that STS's would work equally well with BH. But you will get some blow back mess.
It is widely consider that the 2 Magnum pellets are comparable to 120 grains of loose T7.
Remember the original T7 pellets are not really equivelant to 50 grains of T7 - they are loaded down to equal 50 grains of real BP or Pyro.
Shooting 2 T7 mag pellets brings you to some manufactures maximum load suggested in their rifles. You are effectivlely shooting 150 grains of real BP/Pryro. So in effect you have moved from shooting about 125 grains of BP to shooting 150 grains of BP - There should be movement in your groups.
I consistantly shoot 110 grains of loose T7 from my Rems and I am very pleased with the results.
If I can I would highly suggest that you make the move from pellets to loose - much easier to work up loads - much cheaper to shoot.
Then - depending on which 209 conversion you have you could even move to BH if you can afford the powder and I would say if you are OK shooting the cost pellets - then BH would be an easy move for you. I still prefer to shoot T7-2f and only because of cost.
If you have installed the Canadian 209 conversion - you can shoot shoot BH but you can not use the hottest primers - they creat to much pressure to get through the flash hole. I shoot Cheddites and I am sure that STS's would work equally well with BH. But you will get some blow back mess.
