270 Win Long Range Hunting Load : Post #2

In our second post we are going to look at getting a long range load up for our 270 Win. As most know, the one draw back to loading anything in the .277 caliber (ie 270 Win. 270 WSM, etc.) is that the bullet choice for “heavy for caliber” bullets is low. The other thing to consider is that once the bullet weight increases much beyond 150-160 grains, the standard 1-10” twist may have difficulty stabilizing the bullet. For this work-up, we are going to be using 150 Grain Nosler Accubond LR Bullets and 140 grain Barnes TSX bullets. Lets take a look at each of these bullets.

In any long rang bullet, the higher the BC, the more velocity/energy the bullet will retain down range. It will also help to minimize wind drift. The BC on the TSX is not as high as some other 140 grain options, however, I wanted to see how an all-copper bullet would perform at longer distances. I really like the way these monolithic copper bullets retain their mass on impact. I really with Hornady made a 140 or 150 grain GSX bullet in .277 as I have had great success with the accuracy out of these bullets. With a BC of .591 for the ABLR, this is one of the highest BC options out there. I am excited to see how it shoots. I have done a lot of searching and reading on what powders will get the best performance our of these heavier bullets. In an article from Handloader Ammunition Reloading Journal in November of 2019, John Barnes reviewed the 270 win with several bullets and calibers. What interested me the most from this article was the velocities he was achieving with the heavier bullets our of a 22” barrel. In this he recorded velocities over 3000 fps with 140-150 grain projectiles. This is 270 WSM Territory!!. In this his best powder was Reloader 26, so this will be the first powder we test. Below is a table that we will use to look at both bullets.

Results will be posted ASAP!