Evening Folks, I recently received some Federal Syntech 165gr, as well as some Federal Hydra- shock 165gr .400 bullets  from Vista Outdoor. Is there any reason that the provided load data (regardless of the powder manufacture) would not be applicable for either bullet style?, or would say, the Hydra- shock JHP require a slightly different charge weight than the Syntech? These would be fired primarily from an RIA Ultra  FS / HC 10mm with a 5" barrel. I have not used Syntech jacket technically bullets thus far, and am not sure what to expect.
Thanks


Ken

Pretty much my comments will be about my experiences loading the coated bullet vs jacketed in a 10mm. You really don't want to push a coated bullet much faster than 1500'ps. I doubt you're going to load any near that hot. I'm loading the 180 coated and 180 Hydra-shoks using the same loading data which is 12.8grs 2400= 1250'ps prox. I've never put my 10mm on a chronograph but the numbers given are by the book using a 5" barrel shooting jacketed bullets. I'm shooting the ammo thru a 6" barrel with zero issues. Point of aim is the same as is POI. While I carry my Long Slide as a hunter, I'm leaning more and more to the coated bullets just due to cost for plinking ammo. I'm shooting the Missouri Coated bullets. Hope this info has some value for you.

Hope your knee is doing great! Now all you need is some incentive to run......like a good looking nurse, LOL!

Lol, Thanks man!

Load the Syntecs using cast bullet data. Hopefully they are sized at least 1 thousandth over groove diameter or groups and leading might not be where you want it.

Thanks, according to the box, they are .400

Ken

BE-86 powder was said to not attack the polymer coating where some high solvent powders to attack the coatings.

Thanks Wade,
I did find it odd that on the bullet box, it says 40 S&W / .400, and nothing about 10mm. I was just wondering why 10mm was not mentioned
Thanks again!

Ken

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These are the other 165 grainers, once again saying nothing about 10mm
Thanks!

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So any thoughts on Why these 165 grainers don't say anything about 10mm on the box, only that they are .40 cal / .400 I assume that because the are .400 , they will work fine for.40 S&W, or 10mm even though nothing is mentioned about 10mm on the box
Thanks

Ken

My thoughts (oh boy)are that the bullets being .400 might not shoot out of a 10mm due to the velocity and the bullet not conforming to the barrel allowing lots of flame around the bullet. Accuracy may not be possible with these. There's only one way to know Ken, run them down the barrel and see how they shoot. Just because the law of averages says it ain't supposed to work doesn't mean your gun can't ignore the law. Example would a Marlin 336SC 35 Rem I have that I sometime shoot in offhand open sights competition. I'm shooting a 250gr custom Winchester bullet. The 35 Remington is not supposed to be able to stabilize the heavy slug. My old Marlin apparently didn't get the memo as it will all but stack the bullets at 100 yds if you can. I've taken the trophy home a time or two with that rifle and load. Like we say down in the country, "Don't know if you don't try".

Might want to consider these as plinkers and just load them light with something of a medium burn rate powder like Unique, maybe. Keep the velocity at medium 40SW velocities and they probably won't know the difference. FWIW, if you reload and have the interest, Rock Mountain Reloading has the Sinterfire 40 caliber 135gr FP frangible bullets for $26.00 a hundred. Not necessarily cheap but available. Couple of weeks ago they had the 40 caliber 135gr HSTs for dirt cheap. Haven't shot any yet but I have high hopes anyway.

Thanks Trapper, Vista Outdoors just gave me a few hundred at no cost, and yes, they would be plinker loads. The interesting part is that my XTP bullet boxes of 100 say 10mm / .400, and nothing about.40 S & W. As far as I can tell, .400 is .400, regardless if it says .40, or 10mm...Thoughts?
Thanks

Ken

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The Syntecs being a coated bullet at .400 would be to the small side for the bore. All of the coated 40 caliber bullets I have are all .401. I didn't really look at the other box which is the Hydra Shoks or HST bullets. I shoot the heck out of these and are for the most part the bullet I hunt with but in 180gr version. Load those puppys up to whatever you think you want. Per the book, I'm loading the 180 HSTs to 1250'ps out of a 5" barrel. I'm running them out of a 6" barrel so probably a little faster than that.
From what I have read, HST does not mean anything other than it's just a name. Some want to claim it means Hydra Shok Two. It's supposed to be a continued technology of the Hydra Shoks. In my glorified opinion, you're hard pressed to find a better hunting bullet. I've probably shot every bullet made over the years and the HSTs have, so far, been a killing machine. I don't shoot gelatin monsters, never been attacked by one yet but they are bad medicine on a very urinary feral hog that weighs in over 500lbs. We also snare a lot of the feral hogs using 3/16 stainless aircraft cable and 1x1 heavy wall angle iron for locks. You can't believe the explosion when ol' porky hits the end of the cable. He'll knock everything down in reach- cactus, trees, etc. They're normally not real friendly when you drive up on one either. Most normally, we tell the new guys all they want is a kiss so go give it one. I kiss them with the 10mm and put them to sleep, forever. One shot is all it takes with the HSTs where others might require a follow up shot. I'm sold on them......and I better be considering how many of them I've bought.

Thanks Trapper, so the syntecs coated would be problematic at .400?, or just give me less than accurate loads?

Evening Trapper,
Ok, now after a bunch of searching I actually found an advertisement that mentions .40 / 10mm. I guess my question is this, will the .400 Syntecs work in my Rock Ultra FS / HC 10mm? And if so, is accuracy the only thing that could suffer being it's a coated bullet that is not .401
Thanks for your help Trapper

Ken