Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Elk Hunting
Bullet recommendations for 300WM
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Lefty7mmstw" data-source="post: 670658" data-attributes="member: 48043"><p>Sorry, but you need to put the rifle in the freezer too and wear your hunting parka at the range for that test to work. You can't cheat the test by simply throwing the ammo in the freezer. I mentioned the hunting parka because it should soften how your shoulder acts to the gun, and a softer hold usually means less fps(it can even mess up the action cycle in a semi-auto). The strength and dimensions of the barrel steel will change with temp too. These may not act as constants with both powders and will probably give you a false reading of the difference. </p><p>I've shot from -20 f to + 110 f over a chronograph in real(not manufactured) conditions, and all ammo will loose velocity in cold weather. Hodgdon 4895 in my 25wssm will loose 100 fps+ in that temperature spread, and the rl powders in my bigger rifles are similar if not a bit less. I don't use a lot of hodgdon in the bigger rifles, so I can't give you an exact number. I shoot all loads in both cold and warm temps before I am serious about them. It sometimes takes 6 months and sometimes two days; I'm in North Dakota after all.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 670658, member: 48043"] Sorry, but you need to put the rifle in the freezer too and wear your hunting parka at the range for that test to work. You can't cheat the test by simply throwing the ammo in the freezer. I mentioned the hunting parka because it should soften how your shoulder acts to the gun, and a softer hold usually means less fps(it can even mess up the action cycle in a semi-auto). The strength and dimensions of the barrel steel will change with temp too. These may not act as constants with both powders and will probably give you a false reading of the difference. I've shot from -20 f to + 110 f over a chronograph in real(not manufactured) conditions, and all ammo will loose velocity in cold weather. Hodgdon 4895 in my 25wssm will loose 100 fps+ in that temperature spread, and the rl powders in my bigger rifles are similar if not a bit less. I don't use a lot of hodgdon in the bigger rifles, so I can't give you an exact number. I shoot all loads in both cold and warm temps before I am serious about them. It sometimes takes 6 months and sometimes two days; I'm in North Dakota after all. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Elk Hunting
Bullet recommendations for 300WM
Top