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7mm bullet length

 
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  #1  
Old 02-02-2005, 02:47 PM
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7mm bullet length

Could some of the 7mm fans please post the length (base to TIP) of the following bullets?
154 gr Hornady Interbond
162 gr Hornady SST
162 gr Hornady A-max
160 gr Nosler Accubond
Thanks in advance
Chris
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Old 02-02-2005, 04:31 PM
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Re: 7mm bullet length

Wingman, Don't have all those bullets to measure, but why would you want to? Everyone has a different ogive length, which is what you really neeed to know. You need a bullet to measure in your chamber with your actual throat to see if it will work. Length in your case isn't the big deal some make it out to be within reason, unless you are planning on using a really long heavy bullet in a real small case. You really need a Stoneypoint OAL gauge (or another brand)to really determine anything. Good luck, but watch your bullet choices. You've listed a lot of bullets that are sometimes inconsistent. The Accubond is probably the best out of your list (also made in a 140).
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Old 02-02-2005, 06:01 PM
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Re: 7mm bullet length

wapit13
I'm pondering my next project, a 7mm WSM, and am trying to figure out if I want to put it on a long or short action. I thought I'd throat the barrel to allow shooting heavier bullets seated out a ways.
With a case length of 2.1" and a bullet length of 1" minus a minimum of .250 for seating to the base of the neck leaves an OAL of 2.850. That crowds the heck out of a short action magazine box and thats if the above bullets are 1" or shorter.

The 160 Accubond will be my first choice, I just want to be sure I have other options.
Chris
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Old 02-02-2005, 06:25 PM
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Re: 7mm bullet length

winmagman, I can only give you the Hor IB. Overall length is 1.380 in. The tapered portion of the boattail makes up aprox. .140 in.
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Old 02-02-2005, 10:05 PM
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Re: 7mm bullet length

winmagman,
Here is how I built my 7MMWSM.
I went with a minimum SAME spec 7MMWSM floating pilot reamer and I can touch the lands with a Hornady AMAX and Berger 180 VLD at just under 3" overall cartridge length.This will fit in a savage short action magazine. As far as velocity,You will gain little to nothing by lengthening your throat.If you do want to go with a long throat and load through the magazine,you would be better off with a long action. Last week I did some more load developement and I couldn't be more pleased. Here is my neawest load and velocity out of a 30" Krieger.
73 grains of realoader #25, 162 AMAX, GM 215M primer, overall case length 2.995, average velocity 3363 fps.,
3-shot ES measured an unbelievable 4 fps and put two 5 shot groups at 700 yds inside of 3"
If you try this load in your 7mm wsm start with 70 grains and work your way up. I stopped at 73 grains with no preasure signs. I did see somebodies load up to 75 grains but accuracy and velocity was unsurpassed at the 73 mark.
anyway here are some overall lenghths of the bullets I have.
Hornady AMAX. 1.4075
Berger. 180, 1.514
Sierra. 175, 1.445
hope this is of some help,and good luck on the project.
I'm just happy to see some more 7mm guys out there,because I feel this caliber is under rated. [img]/ubbthreads/images/graemlins/grin.gif[/img]
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Old 02-03-2005, 03:03 AM
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Re: 7mm bullet length

Winmagman, If you use a long action you may have feeding problems. Use a short action but put a 3" magazine box and a magnum follower. Should allow good feeding and plenty of case capacity. Then pick your bullet and throat accordingly.
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  #7  
Old 02-03-2005, 04:01 PM
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Re: 7mm bullet length

308 nate
How fast are you pushing the 180 Bergers? How is the accuracy? I'm building a 7mm myself, but it won't be finished for a while.
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