![]() ![]() Hornady described the Sub-X line as follows: Powders are selected for optimal performance and consistency from lot to lot. Long grooves in its gilding metal jacket combine with the bullet’s flat profile and the patented Flex Tip® insert within its hollowpoint cavity to help it expand reliably at low velocities. The Sub-X bullet used in Subsonic Rifle features a lead core. Subsonic Handgun utilizes tried-and-true XTP® bullets that expand reliably at subsonic velocities. Hornady® Subsonic Ammunition - designed for accuracy and performance below the speed of sound - now comes in both rifle and handgun loads. The following quote is from Hornady’s website, which is followed by their video showcasing the subsonic 7.62×39 in action. Short Barrel Soft Point Showdown: Hornady Black HD SBR Review.11th Edition Hornady Handbook of Cartridge Reloading. ![]() CX Bullets – Hornady’s NEW Monolithic Copper Alloy Expanding Projectiles.Hornady 30 Super Carry Critical Defense Ammunition.308 caliber bullets under the Sub-X line, though they’ve now also listed. For the moment, it appears that the 255-grain 7.62×39 projectiles only come as part of their factory-loaded subsonic cartridge series, while the rest of the Sub-X lineup are available as just the projectiles. ![]() The Sub-X bullets utilize the familiar red-nosed expansion tip, but these tips have been enlarged to enhance the bullet’s expansion at much lower velocities. I am not running these SS but full bore.Despite the launching of many 7 PRC rifles and loadings at the end of October, Hornady quietly launched an updated lineup of their Sub-X bullets, as well as their subsonic 7.62×39 loading using said Sub-X bullets. with a little barrel throating I am able to run them through the magazine just fine and seat the gas check even with the base of the neck. You can likely design a 185 to 200 grain bullet that will allow you to seat within the short Ruskie neck and still fit the cartridges into a box magazine, depending on the magazine you are using. Throating to long seat is a very effective option for a bolt gun but I know you want to run these from a magazine. With SS loads, the danger that a gas check will end up lodged in the barrel unbeknownst to you is increased and you DO NOT want to fire a shot with a gas check obstructing your barrel. Some of the checks will be stripped off the bullet as the base moves through the /shoulder/neck juncture. You are going to run into problems seating a gas check below the case neck. Good information though that your 1:9 stabilized a bullet that is nearly as long as my design and shaped similarly, thanks. I wanted to have a smooth ogive-boreride-driving band transistion so they can have almost the exact same nose profile as a jacketed load for feeding purposes in autoloaders. One concern I have about my design above is that the "bore ride" is full groove diameter, so I'm not sure how well they are going to align when entering the throat. 300 or so bore ride from the end of the ogive down to the microbands.įor a contender, especially one with a 308 bore and a long throat, they'd work fine. The rest of that bullet is designed as a. 310 meant that any imperfections were leading to gas cutting. I think the very small bearing area that's over. I had pretty bad leading problems with them in my. 311 are those tiny driving bands by the microgrooves. And the only part of the boolit that comes out. ![]() The problem is that if you want to seat to SAMMI OALs you are putting the driving bands right at the bottom of the neck. I thought 309-230-5R was going to be my ticket. I know we're talking apples and oranges about what we use gunwise but I think if you want to shoot a bullet that long without doing anything special to the throat you'd be a lot better off going to a bore ride design. I shoot them around 1700 fps in a 10 twist Shilen barrel and never had a problem with leading. The 260 gr bullet has two grooves and the 250 gr bullet has one. included and long enough so only a little past the check is in the neck when chambered after the bullet's been tapered in a die made with the same throating reamer. I have 1.425 long 260 gr and 1.385 250 gr, in WWs, Mos moulds I shoot in a. Don't know if it would matter for the tumble lube. Probably run one groove for the print on the right, might get you closer to your wanted weight too. You could also do away with a few grease grooves. I think if you don't throat the barrel with a shallow angle taper or taper the heck out of the bullet itself there's going to be a lot of bullet hanging below the case neck. ![]()
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