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Barnes Data - 257 Roberts

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18 November 2004, 01:19
cooter
Barnes Data - 257 Roberts
Until I can convince a local source to order some TSX bullets in, I'll be trying some 90 gr XBTs in my Bob. However, I don't have the Barnes manual- can anyone supply me with some data? Currently have H4831, reloaders 19& 22, and some H414 on hand. Would buy some other more "appropriate" powder if someone could suggest something. Looking for Mins and Maxs, please?

Thanks,

Cooter
18 November 2004, 02:56
DesertRam
Cooter, my manual's at home. If nobody has replied by this evening, I'll see what I can come up with.
18 November 2004, 05:45
ricciardelli
http://stevespages.com/257_8_85.html
19 November 2004, 02:58
DesertRam
From the Barnes manual #3:
90 grain XBT (non-coated)
Powder Min. Vel. Max. Vel.
H4895 39.0 3048 43.0 3361
RL15 39.0 2995 43.0 3302
H414 45.0 3099 49.0 3374
IMR4064 36.0 2796 40.0 3107
IMR4350 43.0 2909 47.0 3180
IMR4831 47.0 3002 51.0 3258
19 November 2004, 16:11
cooter
DesertRam- Mucho gracias, amigo! Just what I needed.

Coot