What a difference powder makes!

[KB0VSO]

LOL. Okay Larry. So you're saying I should be able to shoot sub-quarter-minute accuracy with a stock Model 10 and no Accustock?

Hmm. For that I'm going to need a steadier rest. I was just using an el-cheapo $30 Wal-Mart gun rest.

The range was 100 yards.

What are you using for a scale

Larry (KB0VSO)
Northern Minnesota USA

 

[rsrocket1]

Not to threadjack, but for a long time I was wondering if you could duplicate cold weather conditions by putting loaded rounds into a Ziplock bag and cold soaking them in the refrigerator overnight or even a couple of days, then take them out to the range in an ice chest so they would stay cool. Much more convenient than developing a load in the summer and waiting for winter to try them out.

 

[Newtosavage]

Larry, I'm using something like this:

http://www.sportsmanswarehouse.com/...-Measures-and-Scales/prod9999002183/cat100152

 

[KB0VSO]

All Members Note

When i clicked on the provided link windows said parts of it had been blocked
because it could subject me to Identity theft.

I trust the security on my computer and advise you not to click on the link.

Larry (kb0vso)
Northern Minnesota USA

 

[Newtosavage]

Switched the link.

http://www.sportsmanswarehouse.com/...-Measures-and-Scales/prod9999002183/cat100152

Bought some RL-7 today to play with light (125 grain) bullets. We'll see how it groups. It sure metered nice and consistently.

 

[MarshallDodge]

Newtosavage- Good shootin!

W748 is a ball powder and H4895 is an extruded powder. Extruded powders, unless they are short cut, do not always measure consistently for me but sometimes they offer better consistency on paper or in velocity for me.

Is there a particular reason that you are shooting the light bullets?

Do you have access to a chronograph?

I may have missed it but I do not see the range that it was shot.
You should be able to do that @ 200 Yards.

Larry
Northern Minnesota USA

Maybe, but do we really need to muddy up this thread with what someone should be able to do? It really adds nothing to the discussion.

Sub 1" groups at 100 yards is good shooting. I would start a new thread about what awesome shooting you can do at 200 yards rather than start something in this thread.

 

[Newtosavage]

Marshall, I'm in E Texas where the deer are about 100 lbs on average. I see no reason to tolerate heavy recoil for a deer that size, esp. when my daughter's .243 drops them in their tracks anyway. So I'm loading down my .308 - aiming for a 300-yard gun that gives me 1 MOA accuracy and at least 1000 ft. lbs. at 300 yards. That's what the W748 and 125 grain loads are doing, and they work well in my Sightron scope with the HHR reticle (spot on to 200 yards, then first holdover at 300).

I do have a chrono, but haven't set it up yet. I might for my next range session. Based on the holdovers, I'm estimating 2800 fps. with the W748 and 125 grain Nosler BT's.

Incidentally, my first run with 40 grains of RL-7 was pretty awful. I am going to start at 37 and work up to 39 and see if it gets better. Hope it does, or I just wasted $25 on a pound of it.

Also, the person that noticed the different primers in my original post was spot-on. I went back to CCI's and not only did all my groups improve, I gained about 4" in elevation at 300 yards (for free!). Gotta like that. No more Winchester primers for me.

I've also been playing with a reduced load for 150 grain bullets that is showing a lot of promise. It's a 150 grain SST or Sierra Game King over 37 grains of H4895. Works perfectly with my HHR reticle giving me zeroes at 100/200/300 yards on the hash marks. Recoil is about like my 30-30 and it still has 1100 ft. lbs. and very good accuracy at 300 yards.

 

[derek45]

win 748 has been around for a long time, I used to buy it in metal cans

 

[MarshallDodge]

Marshall, I'm in E Texas where the deer are about 100 lbs on average. I see no reason to tolerate heavy recoil for a deer that size, esp. when my daughter's .243 drops them in their tracks anyway. So I'm loading down my .308 - aiming for a 300-yard gun that gives me 1 MOA accuracy and at least 1000 ft. lbs. at 300 yards. That's what the W748 and 125 grain loads are doing, and they work well in my Sightron scope with the HHR reticle (spot on to 200 yards, then first holdover at 300).

Gotcha. Trying to make a 308 be a 243. I've been there before and ended up with a 6mm Remington. Now I shoot a wildcat, a 6x47 Lapua.

Good enough for deer, varmints, and 1200+ yard targets

A good friend shoots a 150 in his 308 and they do pretty well. I will ask him what his load is for you.

 

[MarshallDodge]

I asked the friend about his 150 grain load that he put together. It is probably not what you are looking for. It is a Berry's 150 grain plated bullet over a max charge of Trailboss. He estimates velocity to be around 1400 FPS and he gets great accuracy.

Hodgdon states that when using H4895, you can lower the charge as much as 60% less than the standard loads listed in their data manual.

An older pdf that I have from Hodgdon shows a starting load of 38.0 grains of H4895 using a Federal 210M primer with the 125 Ballistic Tip.

 

[Newtosavage]

I bought my first can of H4895 after doing a search for "reduced loads" and finding that data sheet by Hodgdon. My first loads were just for kicks @ 28 grains, but my hunting load that I'm shooting now is at 37 grains. So, pretty close to that starting load you mention. The accuracy from 36 grains was good, and got better when I tested 37. I'm pretty satisfied with the groups I'm getting with 37 grains under a 150 grain SST or Sierra Game King. Both are consistently shooting sub MOA out to 300, which is all I want for a hunting load. Should have 1100+ ft. lbs. at that distance too.

For a longer range load (up to 400 yards) I'll be shooting a 125 grain bullet over W748, I think. So far that's been a winning combination for accuracy and the energy is still over 1000 ft. lbs. at 400 yards.