I did the same. Sold a bunch of rifles I rarely shot and consolidated the money on one awesome rifle I love to shoot. I am able to swap barrels on it once or twice a year if needed.
If you get over 50% foc, your arrow doesn’t drop, so 2 pins should be good to at least 500yds… a very reputable eye doctor said soThat’s pretty good! How many pins do you need for 400 yards? And what is your pin gap between 300 and 400 yards?
.308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length « Daily Bulletin
With barrels, one wonders Can a little more length provide a meaningful velocity gain? To answer that question, Rifleshooter.com performed an interesting test, cutting...bulletin.accurateshooter.com
7mm will probably loose slightly more per inch due to smaller base.
That should be very easy to achieve especially if you're a handloader.
It will be better than a 20 inch 7-08… if you have a 7mm and that’s all you have to cut down, do it. Many 7mm are already 22” from the factory. 2 inches isn’t more than 70fps and that isn’t gonna make a huge difference in range.
Among about five .308’s, two have shortened barrels, both 16”. The first was for a scout rifle and making specs. Second was a heavy barreled Ruger that I have yet to shot for want of an appropriate scope. That little “scout” has killed many deer until I rescoped due to my aging eyes. 200 yards max out of blinds in central Texas, the handiness of a short rifle cannot be dismissed.
Gunwerks has a podcast about shorter barrels. According to them some cartridges lose more velocity than others when you shorten the barrels. They talk about the 7’s. Its a good listen. It is an older podcast.
Feel free to post data. A larger diameter should give more surface area for gas to act on, meaning less velocity loss cutting down larger calibers. Theory and reality do not always like up though as there are more factors at play, but if that is the case, data will show it to be so.
