kent Posted April 8, 2013 Report Share Posted April 8, 2013 Following on from my .22 centre fire compared I started thinking again on showing how .243 bullets compare with each other as there was mention of the calibre on the thread. Again using max speed from the Nosler guide and all Nosler bullets ( in this case all their Balistic tip ) All max range keeping in 3 1/4" circle 55 grn @ 4069 fps 253 yards zero 293 yards max range FV 10mph 6.93" @ max range 70 grn @ 3630 fps 253 yards zero 268 yards max range FV 10mph 5.76" @ max range 80grn @ 3438 fps 233 yards zero 269 yards max range FV 10mph 5.43" @ max range 90 grain @ 3308 fps 217 yards zero 250 yards max range FV 10mph 4.93" @ max range 95 grain @ 3144 fps 207 yards zero 240 yards max range FV 10mph 4.43" @ max range As well as the ballistics shown one must also consider terminal performance, Deer weight bullets do often pencil on fox due to their thicker jackets and sturdier construction. However I have personally shot a great many deer and fox with the 95 grn btip above and found it to be uncommonly good at both, though they can over fragment at very high short range impacts with brain shots the results can be pretty gruesome. At reasonable ranges they are fine but then again shots of the type mentioned are not taken then. I have further been very impressed by 70 grn on fox only and a couple years back got into the 55's for their higher frangibility as a risk management measure ( not that I might take a shot with one I shouldn't with another). Previously ignoring them on grounds of faster barrel erosion and poorer wind performance. And yes the 55 grn 6mm beats the 22-250 5.56mm. with a bullet of equal weight. But it takes 22 grns more powder going down the tube to do it. Yep its like adding a case of .222 on top! More bang, harder moderation and shorter barrel life all for 0.83" of wind and 22 yards of max range. Personally I should run the 70 grain and gain a bit more wind again for the same max range as the 250 as makes no matter Quote Link to comment Share on other sites More sharing options...
coyotemaster Posted April 9, 2013 Report Share Posted April 9, 2013 Yes Kent I would have to agree to a point with your findings. The 55 grain load would give you the barrel life of a Swift, I too am beginning to see the light as far as a faster twist/heavier bullet/longer barrel life. You lack a bit on point blank with this set up but a decent rangefinder and a little scope adjustment and all is good. Quote Link to comment Share on other sites More sharing options...
al4x Posted April 9, 2013 Report Share Posted April 9, 2013 Doesn't take 22 grains more of all powders varget its no where near Quote Link to comment Share on other sites More sharing options...
Underdog Posted April 9, 2013 Report Share Posted April 9, 2013 LOL, I prefered my 6.5x55 over and of the two .243's I owned. Just seemed nicer to shoot! U. Quote Link to comment Share on other sites More sharing options...
kent Posted April 9, 2013 Author Report Share Posted April 9, 2013 Doesn't take 22 grains more of all powders varget its no where near Again level field. Top .243 velocity was obtained with 53 grains of H380 and top velocity of 22-250 39 grns of same H380, do the maths. Data from Nosler 5th edition Quote Link to comment Share on other sites More sharing options...
Dekers Posted April 9, 2013 Report Share Posted April 9, 2013 (edited) I'm losing the plot, there is a selected amount of information on a brand of bullets, this info is already in the public domain and will only ever be a guide for some people. What is this trying to achieve? Wouldn't this give MORE options and save you having to start a thread for every calibre ever known to man, it also provides FAR more info than your post. http://www.hornady.com/ammunition/rifle Centrefire http://www.hornady.com/ammunition/rimfire Rimfire http://www.hornady.com/ballistics-resource/ballistics-calculator Calculator Repeat with any other manufacturers site you want! Edit If it is meant to be a reloading guide it hasn't scratched the surface and everyone will develop/have their own load for THEIR gun/use and it will likely change with the same bullet weight variation, even in the same calibre through types of powder seating etc! Edited April 9, 2013 by Dekers Quote Link to comment Share on other sites More sharing options...
kent Posted April 9, 2013 Author Report Share Posted April 9, 2013 I'm losing the plot, there is a selected amount of information on a brand of bullets, this info is already in the public domain and will only ever be a guide for some people. What is this trying to achieve? Wouldn't this give MORE options and save you having to start a thread for every calibre ever known to man, it also provides FAR more info than your post. http://www.hornady.com/ammunition/rifle Centrefire http://www.hornady.com/ammunition/rimfire Rimfire http://www.hornady.com/ballistics-resource/ballistics-calculator Calculator Repeat with any other manufacturers site you want! Edit If it is meant to be a reloading guide it hasn't scratched the surface and everyone will develop/have their own load for THEIR gun/use and it will likely change with the same bullet weight variation, even in the same calibre through types of powder seating etc! The thing is there for what it is, many will not be able to use given software correctly and to put all the info side by side in an easy to understand fashion that relates to actual shooting. ie calculating the PBR to balance trajectory to the best effect and more than an odd person gets MOA mixed up with inches rather than a measure of angle Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.