Barnes X bullets .270 win.
- Thread starter bat119
- Start date
Are theses the original x bullets,or the tsx?In either case,I would not be starting them at 54gr,as it will likely be way too hot for these bullets.54 grains is approaching the maximum load for conventional lead core bullets,and the Barnes bullets normally produce significantly more pressure.The tsx usually requires reducing the powder charge for other bullets by 2 grains or so,and the original x bullet,by an additional 1 or 2 grains.Which manual suggests a starting load of 54gr?I would be starting at around 48gr and working up.Barnes recommends seating them .050" from the lands as a starting point.
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This gun shoots 58gr. of IMR 4831 at 3050 fps. (130 gr. Nosler part) primers are nice and flat with no other pressure signs. I have used this gun for deer hunting for at least 25 years and have put more than a thousand rounds through it, however my hunting partners rifle does the same thing with 56 grs. starting low is always a good way to start.
I will I back off a long way from that
after I find a good hunting load powder -bullet combination I like to stick with it, if any of the componets change I always start all over from the bottom and work up.
As far a slightly flat primer goes factory rounds come like that too!
after I find a good hunting load powder -bullet combination I like to stick with it, if any of the componets change I always start all over from the bottom and work up.
As far a slightly flat primer goes factory rounds come like that too!
All the literature I have read on the TSX bullets state, that because of the grooves in the bullet, they actually develop lower pressures than conventional cup and core bullets, therefore starting loads can be 1-2 grains HIGHER than normal.
Not quite.The literature than comes in boxes of the tsx bullets state that because of the grooves in the bullet, they actually develop lower pressures than the X BULLET,therefore maximum loads can be 1-2 grains HIGHER than with THE X BULLET.
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The wording of your post was reasonably close,but reasonably close words can have a very different meaning.Anyone starting out to load the tsx with loading data for cup and core bullets plus a couple of grains,would very soon see pressure signs,possibly with their very first load.
