Posted: 3/11/2014 10:22:46 AM EDT
| I wondered if any of the guys like myself that love the 10mm auto are using the all copper bullets. I have two 10's I shoot the most and both are short barreled. I have a Glock 29 and a Parker 3 1/2 inch. Most of my hand loads have been in the 1,500 fps. range using 180 grain all copper bullets. I have not done any scientific testing yet but in both accuracy, penetration and expansion the all copper bullets look to me like they perform a lot better then jacketed lead including the bonded bullets in both hard targets and synthetic fat . I have found that the copper bullets are longer so they have to be seated deeper then lead bullets. The pressure has to really be watched when changing powder or loads for that reason. With my Glock I can't drive the bullets much over 1,600 fps due to the magazine length but I am happy with about 1,500 fps as I have set my sights there so that factory ammo will not shoot unreasonably low. If you have not tried these bullets I would recommend them in the 10mm as penetration is excellent. I believe that a 180 grain bullet that expands without losing bullet weight would be a good pill for tough dangerous game such as bears and boars or rabid cars. They don't perform as well as my 458 Win Mag. using solids but my Parker is a lot easier to carry then my safari rifle. If you have had any bad experience with the copper bullets let me know. Copper bullets have been around for as long as guns but they are new to me in the 10mm auto and I am impressed with them so far especially at long distances. They are also environmentally friendly to some degree. |
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I'm going to say the same as everyone else. Do you have a chronograph to prove that you are getting 1500 fps with a 180gr projectile? I've also got a glock 29, but even Underwood 180gr XTP loads are only going around 1150-1200fps from the stock barrel, and they are some of the hottest/fastest loads with that grain in that caliber.
Please post pictures of your chronograph reading with this load, a pic of your gun, and a picture of your brass. As to your original question, I believe the consensus on copper/brass solids is that they are too light for their size and are too long to get enough powder behind them to get the pill moving. |