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Post by cmonti77 on May 23, 2016 2:03:42 GMT -5
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Post by bulasteve on May 23, 2016 7:19:40 GMT -5
First, the Hornady factory loading with the 325gr XTP is known to fall short of the advertised fps number and this is not an issue with that load, just saying not to put too much faith in the advertised numbers. Also that they have, from other peoples data, load their factory stuff to less than max.. Others advice above is good. Don't start with max loads, don't fixate on fps numbers, your real life in the backyard numbers will seldom match the books or whats printed on the box. I've seen in print 48K listed as the max, and read that Hornady factory stuff is held to a safer and still thumping 42K.. I don't have pressure testing gear or a chrono so can't throw ya out any specific numbers. Be safe.
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Post by Quick Draw McGraw on May 23, 2016 14:19:13 GMT -5
Quick Draw this doesn't directly answer any of your questions but I'm throwing it out there just for reference sake and personally i wish there was more info to be had on this round first off obviously this is just my meager opinions and thoughts, i like this round for the fact that i believe it does more work with less effort and less felt recoil compared to something like the 454, with that said i believe if one wants velocity to do the work then use the 454 or better yet a 460. that being said i bought into the .480 so as to be throwing large pieces of lead that hit like a sledgehammer and work under 1200 fps and do as much or more than the 454 at higher velocity and lighter rounds (that statement may start some interesting conversation) anyways i am using a 410r wide flat nose with 20.5 of H110, my average through the chrono has been 1141. i also used same bullit with 20.0 of H110 and those averages have been 1111 fps (some believe 20.0gr is right at the bottom and any lower will prove troublesome however i have had good results with both of these loads accuracy wise in fact both are very accurate from my SBH 6-1/2" for me this is right as in accurate, fairly clean burning, hits hard downrange,no real leading issues, is very manageable and accomplishes my goals hope this helps somebody and now i will sit back and watch the shredding of my opinion begin I've done the 20.0 grains of W296/H110 under the Cast Performance 410 grain WFNGC and had good results regarding accuracy, recoil, and velocity (my chrono says an average of 1,270 FPS, but that could be inaccurate). They were more pleasant in my opinion than even the Hornady XTP factory loads. My friend asked if 1,450 FPS was safe. I don't know, honestly, and I don't really want to find out myself. Hence why I am asking more experienced reloaders like yourself. I agree with you that this is around that gets I done with big bullets not High velocity. My advice to my buddy was not to push the top end as that's how I over-pressured my .480 loads and scared myself. This is more just of a curious-to-know thing in regards to when the loaf data is really pushing it too far. I think I should have titled this thread differently. |
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Fowler
.401 Bobcat
Posts: 3,559
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Post by Fowler on May 25, 2016 21:53:40 GMT -5
1450fps with a 410gr bullet is a stiff 475 Linebaugh load not a 480 load. Perhaps 1325-1350fps could be reached but to what gain over 1250fps? Or frankly 1100fps in my book...
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Post by Quick Draw McGraw on May 25, 2016 22:05:18 GMT -5
1450fps with a 410gr bullet is a stuff 475 Linebaugh load not a 480 load. Perhaps 1325-1350fps could be reached but to what gain over 1250fps? Or frankly 1100fps in my book... No argument here... But my friend is asking if a 325 grain bullet can do that, NOT the 410 grain. I'm not sure I'd want to shoot a 410 grain Load at that speed in my .500 JRH. |
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Post by Quick Draw McGraw on May 25, 2016 22:13:28 GMT -5
I think there's a bit of a misunderstanding here. I'm not asking if this is a good idea or not... I'd bet on not. But the load data on Accurate Powder's page lists it as doable. My friend wants to know if it's in fact safe to load.
I think this is pushing it... For that velocity, I say just go .475 LB.
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Post by tek4260 on May 26, 2016 12:41:07 GMT -5
Seating depth is always the issue with swapping components. I asked the same questions several years ago when I got into big revolver calibers. I decided to be safe and only use H110... None of the faster powders. Now I can simply load 100% density and know that I'm getting just about all that can be had from a given caliber. If I was concerned with recoil, I'd rather simply shoot a 22 than to mess around with minute charges of fast powder in the name of reduced recoil and economy.
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