Re: Short action VS Long action
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Trevor</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">I can't believe some of the BS being spouted here.
Cons
1) They are less ridged compared to a short action, you would need to strengthen or get a custom which means more cost to increase rigidity.
"Less rigid" is bullshit. No human can differentiate any rigidity loss and I doubt that even an engineer could show it on a graph. We're talking a 1/4" longer in length of good steel, we're not talking feet.</div></div>
So the long action is not less rigid then the short action?
<span style="text-decoration: underline">No, I didn't say that a long action was not less rigid than a short action, I said "No human can differentiate any rigidity loss..." meaning that you cannot feel or perceive a difference. </span>
That's not right a longer cylinder will always deflect more and be less rigid then a short cylinder having the same diameter. And if we couldn't measure it how could you say that the longer less rigid action wouldn't affect accuracy?
<span style="text-decoration: underline">It can be measured but it is insignificant in 7/8" using the steel that the receivers are made from. No shooter can tell the difference. So trying to spout the rigidity differences is moot as any are irrelevant in our applications. </span>
In order to equal the difference in rigidity of a shorter action one would have to beef up the longer or get a custom. There was no Bullshit comment made.
Here is some rigidity numbers.
In this analysis, Stuart Otteson’s methodology for calculating action rigidity (see Benchrest Actions & Triggers, Stuart Otteson, 1983), All rigidity figures are calculated through a section across the width of the action at the center of the loading port as in most cases this will be the weakest area of the action. Following is a table showing calculations for the rigidity of various modern rifle actions
Remington 700________________________0.54 x 106 in2-lb
Winchester Model 70___________________1.11 x 106 in2-lb
Remington 40X________________________1.38 x 106 in2-lb
SPF Diamondback______________________3.16 x 106 in2-lb
BAT Three Lug________________________3.21 x 106 in2-lb
Stoelle Panda___________________________3.52 x 106 in2-lb
Borden BRL__________________________3.77 x 106 in2-lb
Barnard S____________________________3.93 x 106 in2-lb
Gilkes-Ross__________________________3.97 x 106 in2-lb
Hall B_______________________________10.7 x 106 in2-lb
<span style="text-decoration: underline">Where is the comparison of long and short action? This chart doesn't mean squat if we cannot compare the LA and SA. If the SA is here, Remington 700__0.54 x 106 in2-lb, what is a LA?</span>
2) the bolt throw of a long action is sloppier (affecting accuracy) due to the longer bolt, this could be corrected on a factory but a custom action would have the tighter tolerances built in, again more cost for a custom.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Again, bullshit. Bolt throw length has zero to do with accuracy. So there are no accurate factory long actions? There are plenty of extremely accurate factory long action rifles. Again, we're talking about a 1/4" in length. The length of the action has nothing to do with accuracy.</div></div>
I never suggested there was no accurate long actions what was being suggest was that the longer throw of the bolt with the additional play would not consistantly pick up and cycle the round as a shorter action with less slop. If you can not cycle the action the same each time then there would be a greater chance the rifle would not shoot as accurately.
<span style="text-decoration: underline">Here is what you said "sloppier (affecting accuracy) due to the longer bolt,"
"affecting accuracy" is not "cycling the action"
The sloppiness of the bolt had zero to do with accuracy. Is it possible it may not pick up a round as consistently? Perhaps, but accuracy has zero to do with the length of the bolt. Once the bolt is tightened on the lugs, even with a stock rifle, there is no affect on accuracy whatsoever. </span>
I
3) You could ask someone familiar with the M24 system and get their input whether or not they have noticed more failure to feed or stoppages with the long action and magazine system over the short action.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">No, they haven't.</div></div>
You say no someone else in this thread says yes i will call it a wash. cycling a short round such as the 308 through a long action would have more FTF then someone using a short action with 308 specific mags.
<span style="text-decoration: underline">
I don't believe the difference is enough to warrant making it a notable problem. Again, the Army has been using a LA 308 for years and trouble cycling is not a major concern. So I believe the difference in belief here is based solely on acceptable parameters. </span>
4) Long actions require more movement to manipulate the bolt, which may not be advantages to those that are in stealth environments.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Mike</div><div class="ubbcode-body">Again, bullshit. The time difference and movement between the two are miniscule at best. In fact, nearly undetectable and the Army proves that on a daily basis. If you're busted because you racked your bolt 1/4" more than you were in a bad spot. You don't have to move your face to rack the bolt, especially if you do it slowly, again as the Army shows. </div></div>
In hin sight I will concede this point manipulating a bolt the extra 7/8 would seem to be a nonfactor.
i am not in favor of a long or short action. The appealing aspect to me is the ability to load short caliber like the 308 or 284 in a long action and using the longest bullet available without pushing the bullet deep into the boiler room. however i am very consicous of Remington's rigidity and a beefer long action would equal or better a factory version.
<span style="text-decoration: underline">Trevor, my point is that if I gave you two nearly exact rifles in 308, one in LA and one in SA, you would not be able to differentiate the two at all. And that's not just you, that's me, and everyone I know. I feel any differences are so small that they are virtually impossible to perceive without scientific measurement. Shoot want you want and take advantage of what you got. 308 seated way out, yes, 6.5x284 so you can seat out long, yes, SA because that is what you have and make it work? Yes.</span>
Trevor </div></div>