Copyright 2021 500m Fly Shooter - All rights reserved. These are our big bore cartridges, for large to dangerous game.Three are revolver cartridges, the rest for large caliber lever guns. The case length of the.284 measures 2.170â (55.1mm). The 3rd step is to seat an old primer. I have had a form die made by my gunsmith & am happily forming cases to the same level as I do with my BRX’s. 6.5-284 Norma 6.5-300 Weatherby Magnum 6.5 Precision Rifle Cartridge 6.5 Weatherby Rebated Precision Magnum 6.8 Western 300 Precision Rifle Cartridge 300 HAMâR 300 Norma Magnum 338 Norma Magnum 350 Legend Long recognized as a superb choice for hunters, the 7mm (.284) bore size is now attracting great interest among long-range match shooters as well. SV590 v2 Vertical Mini-ITX PC Case for 360mm AIOs and 3-slot GPUs Compact vertical layout takes up less desk space Unique easy-flip feature allows cables to come out top or bottom of case Rear mounting bracket for one 360mm Naturally, the 6mm-284 is at its best with slow burning powders. It’s easy to tell if you know your chamber dimensions which your gunsmith should be able to tell you. The 6.5-284 has been used extensively in benchrest competitions and is known as an extremely accurate long range round. I simply use a K & M expander mandrel. [4] Rich DeSimone's 1,000-yard (914.4 m) record has been broken by Tom Sarver, who shot a 1.403-inch (35.64 mm) group in 2007 using a .300 Hulk wildcat cartridge that is based on the .338 Lapua Magnum cartridge. Whidden Gunworks in the US now make their version of this die for what appears to be a reasonable price. Includes: 330 Diameter Bushing, .350 Diameter Bushing, .375 Diameter Bushing, .400 Diameter Bushing, .420 Diameter Bushing & comparator body. Now for the moment of truth; Is the case formed or not? The 2nd step is to expand the necks to 7mm. This may be as much as .008" - .010" smaller than the maximum cartridge dimensions typically shown in most reloading manuals. Hereâs a 5-shot 0.191â³ group at 100 yards with my .284 Shehane fire-forming loads. It’s a very good idea to smear a little grease or wax (I use imperial die wax) on the plunger to lube it & to help seal the tiny gap between plunger & die. Producing a 6mm-284 case is simply a matter of running .284 Winchester brass through a 6mm-284 forming die. Only logged in customers who have purchased this product may leave a review. A 140 gr (9.1 g) bullet in this caliber is typically fired at 3,000 ft/s (914 m/s) to 3,100 ft/s (945 m/s). 1; You must have a shell holder with no hole in it’s base in order to keep the old primer in place & thus keep the water in the case. This is necessary to keep water in the case when forming. Using an improved version of the 6.5-284, Rich DeSimone set a 1,000-yard (914.4 m) world record with a 1.564-inch (39.73 mm) group. 0.284 150.0 Triple-Shock X Boattail 1.310 0.284 150.0 X Boattail 1.320 0.284 160.0 MRX BT 1.230 0.284 160.0 Triple-Shock X Flat Base 1.402 0.284 160.0 XLC Flat Base 0.284 168.0 Long Range X ⦠I use a medical syringe. Theoretically this is true, but in practice it was a little more complicated. Parent case.284 Winchester Bullet diameter.264 in (6.7 mm) Neck diameter.297 in (7.5 mm) Shoulder diameter.475 in (12.1 mm) Base diameter.501 in (12.7 mm) Rim diameter.473 in (12.0 mm) Rim thickness.054 in (1.4 mm) [6], https://fusiontables.googleusercontent.com/fusiontables/embedviz?viz=CARD&q=select+*+from+1C5o2xk_hWmBsTsTUWwoZ262XZOtOsNloF2QDW28+where+col4+%3D+14605+order+by+col0+asc&tmplt=1&cpr=1, http://www.hodgdonreloading.com/data/rifle, https://fusiontables.googleusercontent.com/fusiontables/embedviz?viz=CARD&q=select+*+from+1C5o2xk_hWmBsTsTUWwoZ262XZOtOsNloF2QDW28+where+col4+%3D+14615+order+by+col0+asc&tmplt=1&cpr=1, DeSimone's Dynamic Duo - 1000-Yard Record Rig (Reborn) and Classy New Curly Ash 6.5 Super, Sarver Shoots 1.403â³ Group at 1000 Yards, http://www.eabco.com/6.5_mm_cartridges.html, The 6.5mm-284 Norma and 6.5mm Remington Magnum, https://en.wikipedia.org/w/index.php?title=6.5-284_Norma&oldid=1000252417, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 January 2021, at 09:52. *Bushing not included. Part 5 - Case weighing for final sorting. Borden 6mm-284 SPEC SHEET Borden Long-Range Rifle, 16.5 lbs Nesika âKâ Action, 1.70â³ diam., Right Bolt, Left Port. The die has a drill hole in it’s top which extends completely through the die into it’s chamber. Ackley Improved chambers use the same bushing size as the parent case. 6.5 Grendel | 260 Rem | 6.5×55 | 6.5-284 284 Win | 7mm SAUM | 7mm WSM | 308 Win | 300 WSM | 30-06 | 300 WM | 338 LM WARNING: Case Diagrams are provided for illustration purposes only. *Bushing not included. Uniformity â Unmatched in consistency, manufactured here in Cashmere, WA since 1936. I won’t claim the process of using this die wasn’t without teething problems, but I will say that I can now form 60 BRX cases, perfectly head spaced for my barrel chamber, in under 2 hours, without leaving home & without firing a shot. Hart 28â³, 1:9â³ twist, .920â³ at muzzle, cryoâd with ⦠(.313 neck and .225 freebore) I also have a straight .284 reamer that is .313 X .220. Check with a dozen 6.5-284 benchrest shooters, and you'll find a wide variety of chamber neck diameters, from 0.286" to 0.298". For hunting, the 6.5-284 produces high power from short action rifles but again, this is not a clear cut issue. As I am in no way a journalist, I will apologize in advance for any grammatical errors that may occur during this writing. Trim to a length of 2.155". Further more, not having a dedicated fire forming barrel left me with over 200 rounds on my new custom barrel before I had a set of cases that were worth a dam! The 284 still functions on standard, 30-06 diameter bolt faces because it has a rebated rim; rim diameter at .473â (same as 280 Rem.) I now have 4 BRX’s in various calibers, weights & barrel twists & the cases for all are hydraulically formed with the same die I bought from Hornady over 5 years ago. It seems to be about the best balance for several bullets and is a perfect match for the 180 Hybrid. Since the majority of cases that the reloader is likely to encounter in the field are thicker than the minimum specifications that the dies were designed for, case ⦠Most importantly though I’m at home & so the Higher Authority (the misses, the better half, the handbrake,) can rest easy should I be needed for that all important Sunday afternoon pruning job! It’s been touched on a number of times in the forum but has also been a conversational peace at any number of matches. [5] In contrast, most hunting rifles show similar accuracy at 100 yards (91.4 m) to 200 yards (182.9 m). 6.5x284 Shehane: Just the 6.5x284 Norma with tightened up dimensions, a different shoulder angle and a tight neck, requires neck turning the brass. Unlike other trimmers, the Step 4 is to fill the case to the brim with water. INDICATES MAXIMUM LOAD â USE WITH CAUTION Rifl e Data6mm-284 105G RAINB ULLETS SECTIONAL DENSITY: 0.254 DIAMETER: 0.243" 1^05 B. grTHP Macht Item No.