I am encouraging my dad to practice more with his 300 win mag for an upcoming elk hunt, but his sporter weight 300 win mag beats him to death during extended range sessions. I was wondering if I could reload some rounds to ~30-06 performance. I haven't found any such loads in my manual, but I am curious to know if any manuals have a load that would be suitable. I am willing to order something different, but I have a bunch of 165 grain bullets that I would prefer to use.
- Thread starter BenelliSBE
- Start date
Re: Reloading 300 Win Mag to 30-06 performance
I pulled some 190 SMK bullets from some A191 and replaced them with 175 SMK's just for grins. Recoil was nothing and velocity was 2850fps.
The A191 had 72 grains of powder. I believe it was RL22.
That may be a starting point.
I pulled some 190 SMK bullets from some A191 and replaced them with 175 SMK's just for grins. Recoil was nothing and velocity was 2850fps.
The A191 had 72 grains of powder. I believe it was RL22.
That may be a starting point.
Re: Reloading 300 Win Mag to 30-06 performance
Load it as if it were 30-06 and adjust as needed over a chrony. 4895 will likey give good accuracy and 414 would also be a good powder to try. I would try to stick to bullet weight / powder combos' shown in both wm and 06, just reduce to the 06 loadings.
Load it as if it were 30-06 and adjust as needed over a chrony. 4895 will likey give good accuracy and 414 would also be a good powder to try. I would try to stick to bullet weight / powder combos' shown in both wm and 06, just reduce to the 06 loadings.
Re: Reloading 300 Win Mag to 30-06 performance
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MtnCreek</div><div class="ubbcode-body">Load it as if it were 30-06 and adjust as needed over a chrony. 4895 will likey give good accuracy and 414 would also be a good powder to try. I would try to stick to bullet weight / powder combos' shown in both wm and 06, just reduce to the 06 loadings. </div></div>
Wouldn't there be quite a bit of difference because of the extra empty space(case volume) vs the 06? Maybe it's not enough to matter? This is not something I have experience with; however, I know that just changing the seating depth of a load can fairly significantly affect chamber pressures.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: MtnCreek</div><div class="ubbcode-body">Load it as if it were 30-06 and adjust as needed over a chrony. 4895 will likey give good accuracy and 414 would also be a good powder to try. I would try to stick to bullet weight / powder combos' shown in both wm and 06, just reduce to the 06 loadings. </div></div>
Wouldn't there be quite a bit of difference because of the extra empty space(case volume) vs the 06? Maybe it's not enough to matter? This is not something I have experience with; however, I know that just changing the seating depth of a load can fairly significantly affect chamber pressures.
Re: Reloading 300 Win Mag to 30-06 performance
Go to Hodgdon's reloading data center. They have loads for the 165s in a 300WM. Just use the lighter loads. Don't use other cartridge data in a different cartridge. Safety should be the first thing you think about when reloading.
http://data.hodgdon.com/cartridge_load.asp
Go to Hodgdon's reloading data center. They have loads for the 165s in a 300WM. Just use the lighter loads. Don't use other cartridge data in a different cartridge. Safety should be the first thing you think about when reloading.
http://data.hodgdon.com/cartridge_load.asp
Re: Reloading 300 Win Mag to 30-06 performance
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BenelliSBE</div><div class="ubbcode-body">his sporter weight 300 win mag beats him to death during extended range sessions. I was wondering if I could reload some rounds to ~30-06 performance. </div></div>
You could download a 300 WM to 30-06 by using a chronograph and ligher bullets until you got 30-06 MVs.
It would be easier to loan him a 30-06.
I further suspect that if he keeps shooting the 300WM loaded for Elk at practice, he will probably develop a flinch--which will do nothing good on your hunt.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BenelliSBE</div><div class="ubbcode-body">his sporter weight 300 win mag beats him to death during extended range sessions. I was wondering if I could reload some rounds to ~30-06 performance. </div></div>
You could download a 300 WM to 30-06 by using a chronograph and ligher bullets until you got 30-06 MVs.
It would be easier to loan him a 30-06.
I further suspect that if he keeps shooting the 300WM loaded for Elk at practice, he will probably develop a flinch--which will do nothing good on your hunt.
Re: Reloading 300 Win Mag to 30-06 performance
Use a faster than standard .300 powder. 4895 or 3031 are good easily ignited powders. Don't just reduce the slow burners. 60 gr of 4895 will give about 30-06 speeds with the 165 grain bullets.
Use a faster than standard .300 powder. 4895 or 3031 are good easily ignited powders. Don't just reduce the slow burners. 60 gr of 4895 will give about 30-06 speeds with the 165 grain bullets.
Re: Reloading 300 Win Mag to 30-06 performance
Would a muzzle brake be an option for him?
Would a muzzle brake be an option for him?
Re: Reloading 300 Win Mag to 30-06 performance
You could always load up a "youth load" http://www.imrpowder.com/PDF/Youth%20Loads.pdf
Of all the youth loads I have tried, I did not have to change my scope zero at 100Y.
You could always load up a "youth load" http://www.imrpowder.com/PDF/Youth%20Loads.pdf
Of all the youth loads I have tried, I did not have to change my scope zero at 100Y.
Re: Reloading 300 Win Mag to 30-06 performance
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: phearkno1</div><div class="ubbcode-body">Would a muzzle brake be an option for him? </div></div>
+1
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: phearkno1</div><div class="ubbcode-body">Would a muzzle brake be an option for him? </div></div>
+1
Re: Reloading 300 Win Mag to 30-06 performance
Thank you for all the excellent feedback. I think I am going to go the "Youth Load" route. I'll order some lighter bullets and use H4895.
As to the muzzle brake idea. That is a no-go for both aesthetic and acoustic reasons. (If it were my rifle, it would be an option.).
Now my question is whether to use magnum primers or large rifle primers. The youth loads list large rifle primers, but the the normal loads with H4895 suggest magnum. Could I safely use the magnum primers with a reduced load of H4895?
Thank you for all the excellent feedback. I think I am going to go the "Youth Load" route. I'll order some lighter bullets and use H4895.
As to the muzzle brake idea. That is a no-go for both aesthetic and acoustic reasons. (If it were my rifle, it would be an option.).
Now my question is whether to use magnum primers or large rifle primers. The youth loads list large rifle primers, but the the normal loads with H4895 suggest magnum. Could I safely use the magnum primers with a reduced load of H4895?
