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Posted: 3/20/2006 12:10:22 PM EDT
[#1]
whats the difference between Boat tail and flat base?
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Posted: 3/20/2006 3:13:55 PM EDT
[#2]
One has a flat base and the other has a boat tail base
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Posted: 3/20/2006 3:16:40 PM EDT
[#3]
wow, thanks for the detailed explanation
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Posted: 3/20/2006 4:39:36 PM EDT
[#4]
Go look at a reloading book and quit whining. It really is just that simpe. To the original poster, don't ask us, ask your barrel. |
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Posted: 3/20/2006 5:43:19 PM EDT
[#5]
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Posted: 3/20/2006 7:56:38 PM EDT
[#6]
  Figure it out. |
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Posted: 3/22/2006 4:19:28 AM EDT
[#7]
No, actually I've shot lots of Black Hills Blue 52 bthp's. They have been very accurate in both of my AR's. My comment is more that every barrel is different and likes different loads. They are not all created equal. One of my uppers hates Q3131A and the other one shoots it very well. If someone tells you how it works for them, it might not help you one bit. You have to shoot them in your rifle to find out how it likes it. It would be shame to buy a case of ammo that shot good in someone elses rifle on the internet and then when you shot it through yours, it was not so good. You get me? |
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Posted: 3/22/2006 5:25:47 AM EDT
[#8]
Why are boat tails bigger? |
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Posted: 3/22/2006 12:16:22 PM EDT
[#9]
Just my .02 cents what i have always been told if you plan on shooting a heavier bullet with the shoter barrels you want a 1 in 7 twist, but I have a 1 and 9 with a 16 in. barrel and seems to be working just fine. It seems to get a enough spin on the bullet to still be effective at 100 plus yards.
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Posted: 3/31/2006 10:54:09 AM EDT
[#10]
JJREA... I understand what you are getting at. They all shoot a little different. By the same token, there is usually a trend to be picked up on, which is what I am after. If 9 out of 10 folks with the 1:9 twist have good luck with those bullets, it's worth me buying a box to try..... same token, if the replies as more negative, time to move on to another selection.
By the way...have you tried any of the flat based Sierra HP's... the 53 grainers??? Great info on the Boat tail HP....sounds like you are doing ok with it. I'm have my first AR on order and I'm hoping to have some sample ammo on hand to play with when the little darling shows up. |
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Posted: 3/31/2006 12:58:46 PM EDT
[#11]
No, I never tried any of the 53 grainers. I've actually never seen them in a store and Midway was the only place I've seen them. It was hornady ammo. On another note, some say flat base bullets are more accurate. But for the most part at closer ranges. Then the boat tail aerodynamics pays off further out. Take it for what it's worth but it seems like there's probably merit to that. I'm not sure what your goal is as far as distance for the ammo but I thought I'd add it in. 
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Posted: 4/1/2006 8:30:20 PM EDT
[#12]
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Posted: 4/2/2006 5:44:16 AM EDT
[#13]
No problem. Here's some groups of the 52's with a bone stock colt 1/7 A2, with a scope on the carry handle for testing ammo:   Nothing stellar but it's obviosly not a bench rest gun, and under 2 moa with a stock rifle is pretty good I think. |
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Posted: 4/10/2006 6:33:26 PM EDT
[#14]
I've shot both in my 1:9" Colt AR & a few different turn bolt Rifles. Without exception the 53 gr. HP Match )Flat Base) has been consistantly more accurate than the 53 gr. HPBoatTail out to 300 yards!! Past 300 yards you would probably need the boattail...., but then again the 53 gr. is not really intended for use past 300 yards anyway!! I use Sierra 63 gr. Semi-Point past 300 yards & it works great in my 1:9" It too has a Flat Base Anything heavier & I think you'll need at least 1:8 twister!! In my guns the 53 gr. HP Match also out shoots the 50 gr. Blitzking as well as the 50 gr. V-Max. There is a reason match Shooters use "Flat Base" bullets out to 300 yards......, it's because they are more accurate!! Also..., from my experience Sierra bullets seem to be more accutare than Hornady!! |
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Posted: 4/10/2006 6:46:46 PM EDT
[#15]
You can SEE individual white rings on that target, at 100yds? At 100yds, all I could see with irons would be the big red rectangle, and just have to put my front sight in the center of it. I cannot imagine being able to determine and hit the inidividual rings on that target. |
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Posted: 4/10/2006 6:54:47 PM EDT
[#16]
Good point!!
Not sure what kind of accuracy the poster is shooting for (pardon the pun!!) My examples are refuring to use of 14x plus optics trying for sub 1/2 MOA @ 100 yards & sub 1" @ 200 & sub 2" @ 300 Iron sights & small X scopes are not my thing so I wouldn't have a clue about that!!  |
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Posted: 4/10/2006 8:07:46 PM EDT
[#17]
Falarak, I said I had a scope on the carry handle. Sorry the picture decieved you!!!!! I've never shot that good with irons. Well, I did shoot a 1-3/8" 5 shot group from my garand once, with M2 ball. I was amazed. But I think 2.5-4 moa is more realistic for iron shooting. Unless you're a highpower guy. |
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Posted: 4/10/2006 8:13:14 PM EDT
[#18]
DOH! My reading comprehension is off. Hell - I have shot a 1" group with irons at 100 before.... just once. But I do 2-3" fairly regularly with a good barrel and ammo. But even that 1" group.... all I can see is the big sighter target outline.... I just try to consistently put the front sight in the same place on the blurr.  I was shooting some clays at 100yds last weekend, and suprisingly, since I got my new glasses, I did just as well with irons on them as I did with my ACOG weapon, offhand. The clays are a blur, but the contrast is so high they are easy to pick out.I was about to say - that is some damn fine shooting, and some damned fine vision! |
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Posted: 4/11/2006 8:32:25 PM EDT
[#19]
If I shoot with the irons, I usually try and use a black bull. That's whay I've learned from the Garand Collecters Association guy. |
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