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
Rifles, Reloading, Optics, Equipment
Reloading
Load development newb help
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="FearNoWind" data-source="post: 1255653" data-attributes="member: 50867"><p><em>Remember - whatever you read on these forums represents only the opinions of those who contribute to your post. You'll usually get some good ideas. Sometimes not so good .......</em></p><p><em></em></p><p><em></em>Winchester Model 70, 7mm rem mag. twist rate is 1-9.25. Still has the manufactures plastic stock (and yes I know they are garbage) but I did glass bed the action.</p><p><strong>Is yours the Super Grade, Sporter or ES?</strong></p><p>Spent cases are a mix of remmington, winchester and federal.</p><p><strong>For practicing purposes, I'd work with the Winchester and save the others.</strong></p><p>Now here's where I need some clarification. This is going to be a hunting round for moose elk and deer and I want something that will be good for longer ranges out to 1000yards (can't shoot that far yet but I want a bullet that can) so I have settled on giving the hornady 162gn sst or the 162gn eld-X a try. </p><p><strong>Measure your barrel length (front of recoil lug to muzzle) and see if you can give that to someone on the forum (along with your bullet data) who will run a QuickLoad analysis for you. They should be able to give you a MV node objective with the highest percentage of powder burn within safe load limits. </strong></p><p><strong>Even if you had to pay for the service it'd be worth it just for the savings in powder.</strong></p><p>First question is how do I settle on a powder from all them listed in the load data. I'm assuming part of it would depend on what is readily available to me, but how do I decide from there. Is there certain powders that preform better in the 7mm rem mag that others. Will I have to try out several different kind to find what works for my particular setup. I am more concerned about accuracy than top speeds, I can adjust for elevation.</p><p><strong>See previous response.</strong></p><p>2. Once I find out which powder to use, is there a rule of thumb as to where to start for the charge weight and what grain increments to jump up (.5gr or 1gr) for the next loads for testing.</p><p><strong>We all have our opinions on this subject. I would start with the mid-range load data recommended in the reloading manual and work up (I like .3 grain increments) to find the best performing load - staying well away from maximums. Then I'd compare it with Qucikload data to validate the range results. I worked up a load this week and the results suggested I was somewhere near a node. Quickload validated (within 5 fps) what I saw on target.</strong></p><p>3. Once I find my OCW do I then load bullets in a smaller gr incement such as a .1gr and retest until I am happy with the groups.</p><p><strong>Once I found your accuracy node the next step I'd take is using something similar to the Berger load testing routine (<u><u><u><u><a href="http://www.bergerbullets.com/getting-the-best-precision-and-accuracy-from-vld-bullets-in-your-rifle/" target="_blank">Getting the Best Precision and Accuracy from VLD Bullets in Your Rifle | Berger Bullets Blog</a></u></u></u></u> ) which can be done using bullets other than Bergers. But I'd never start with jamming - just my own margin of safety. Plus, I've never found it necessary to "jam" any load to find a node that worked.</strong></p><p>4. As a newb to this reloading thing I will follow the manual for the C.O.L of 3.290" but where does the seating depth come into play, that I keep reading about. Does it also increase accuracy.</p><p><strong>Don't confuse COL with CBOL. You'll have better outcomes if you rely on CBOL. Seating depth effects accuracy. Whether or not it increases accuracy is relative to where you started. Using the information on the Berger ballistics </strong></p><p><strong></strong>5. Now to crimp or not to crimp. Do I have to crimp and what are the advantages and disadvantages.</p><p><strong>Unless there's some reason to expect your bullets will be moving in/out of their seated neck positions I don't see any reason to crimp anything. I don't know any serious hunter who crimps 7mm (except perhaps for a lever action)</strong></p></blockquote><p></p>
[QUOTE="FearNoWind, post: 1255653, member: 50867"] [I]Remember - whatever you read on these forums represents only the opinions of those who contribute to your post. You'll usually get some good ideas. Sometimes not so good ....... [/I]Winchester Model 70, 7mm rem mag. twist rate is 1-9.25. Still has the manufactures plastic stock (and yes I know they are garbage) but I did glass bed the action. [B]Is yours the Super Grade, Sporter or ES?[/B] Spent cases are a mix of remmington, winchester and federal. [B]For practicing purposes, I'd work with the Winchester and save the others.[/B] Now here's where I need some clarification. This is going to be a hunting round for moose elk and deer and I want something that will be good for longer ranges out to 1000yards (can't shoot that far yet but I want a bullet that can) so I have settled on giving the hornady 162gn sst or the 162gn eld-X a try. [B]Measure your barrel length (front of recoil lug to muzzle) and see if you can give that to someone on the forum (along with your bullet data) who will run a QuickLoad analysis for you. They should be able to give you a MV node objective with the highest percentage of powder burn within safe load limits. Even if you had to pay for the service it'd be worth it just for the savings in powder.[/B] First question is how do I settle on a powder from all them listed in the load data. I'm assuming part of it would depend on what is readily available to me, but how do I decide from there. Is there certain powders that preform better in the 7mm rem mag that others. Will I have to try out several different kind to find what works for my particular setup. I am more concerned about accuracy than top speeds, I can adjust for elevation. [B]See previous response.[/B] 2. Once I find out which powder to use, is there a rule of thumb as to where to start for the charge weight and what grain increments to jump up (.5gr or 1gr) for the next loads for testing. [B]We all have our opinions on this subject. I would start with the mid-range load data recommended in the reloading manual and work up (I like .3 grain increments) to find the best performing load - staying well away from maximums. Then I'd compare it with Qucikload data to validate the range results. I worked up a load this week and the results suggested I was somewhere near a node. Quickload validated (within 5 fps) what I saw on target.[/B] 3. Once I find my OCW do I then load bullets in a smaller gr incement such as a .1gr and retest until I am happy with the groups. [B]Once I found your accuracy node the next step I'd take is using something similar to the Berger load testing routine ([U][U][U][U][URL="http://www.bergerbullets.com/getting-the-best-precision-and-accuracy-from-vld-bullets-in-your-rifle/"]Getting the Best Precision and Accuracy from VLD Bullets in Your Rifle | Berger Bullets Blog[/URL][/U][/U][/U][/U] ) which can be done using bullets other than Bergers. But I'd never start with jamming - just my own margin of safety. Plus, I've never found it necessary to "jam" any load to find a node that worked.[/B] 4. As a newb to this reloading thing I will follow the manual for the C.O.L of 3.290" but where does the seating depth come into play, that I keep reading about. Does it also increase accuracy. [B]Don't confuse COL with CBOL. You'll have better outcomes if you rely on CBOL. Seating depth effects accuracy. Whether or not it increases accuracy is relative to where you started. Using the information on the Berger ballistics [/B]5. Now to crimp or not to crimp. Do I have to crimp and what are the advantages and disadvantages. [B]Unless there's some reason to expect your bullets will be moving in/out of their seated neck positions I don't see any reason to crimp anything. I don't know any serious hunter who crimps 7mm (except perhaps for a lever action)[/B] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Load development newb help
Top