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Post by bigblue on Nov 2, 2009 19:51:42 GMT -6
My dies came in today and I loaded my first .260s for my Rem. Model Seven. I did neck up some .243 brass to give it a try. It went smooth as can be and length came out just right. I only have 20 of .260 cases, so the .243 cases will come in handy. I had a full box of 100 new .243s and several hundred used cases. I loaded the 140gr. Horn. SST bullets, that I already had on hand, using H414, IMR4350 and H4831SC powders. I'm hoping H414 works out the best, I have quite a few lbs. of that.
Now I just need some range time. I'm hoping Saturday will bring an opportunity.
Don
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Post by DocHolladay on Nov 2, 2009 22:08:35 GMT -6
Dont forget at least a pic or 2 of your groups.
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Post by bigblue on Nov 3, 2009 16:21:12 GMT -6
I've been thinking on using the 140s a bit. They don't leave a lot of powder room and I'm thinking I might do better with 120gr. bullets to get more velocity from this 20" barreled gun. I have a box of Barnes 120gr. TSX bullets sitting in my cart at Midway. If I get good accuracy from these 140s then velocity be damned. If not I'll order those Barnes bullets and give them a try. One reason for my fascination with a 6.5 is the high sectional density of their bullets. They list .287 SD for the 6.5 using a 140gr. To give you a comparison the .270 with a 150gr. bullet has an SD of .279, the 7mm with a 162gr. bullet has an SD of .287 and the .308 with a 190gr. bullet has an SD of .286. So it takes a heavy for caliber bullet to equal the penetration this bullet has.
I remember reading an article years ago about a guy using 220gr. Hornady RN bullets and comparing their penetration to those of other cartridges. The 220gr from a .30-06 penetrated better than a 270gr. bullet from a .375 H+H. His tests went beyond theory and he actually tried these bullets on bones. I have some of the 220s loaded for my Tikka, but have never had the occasion to try them on game.
Don
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