Finding the Limits of a Factory 30-378 Accumark

[Broz]

Smokin, being a factory rifle we are hoping for decent accuracy out to maybe 800 or 1000. If not we will find were it will consistantly group in a kill zone of a deer. On down the road if the barrel wears out he would then restock and rebarrel and TRGRMAN could do his magic. Living here in the Ozarks deer are hunted in tight timber so that is the reason for the lower powdered scope with the 56mm objective. When I was out to see you and TRGR I shot my 30-378 with the 4.5x14 scope out to 1000 on the pygmy targets with good results.. If we get a factory rifle to shoot that far I will be happy.

Jeff

[Magnumdood]

I'm curious just how fast you can get that 210 Berger going. My chamber is a 30-378 Improved with no freebore. Gordy set the throat dimensions up for the 210 Berger. I haven't chrono'd it yet, but I'm hoping for 3250 ~ 3300 out the 210. I did chrono some Nosler 180s and was getting an honest 3600 with no pressure signs.

[Broz]

I'm curious just how fast you can get that 210 Berger going. My chamber is a 30-378 Improved with no freebore. Gordy set the throat dimensions up for the 210 Berger. I haven't chrono'd it yet, but I'm hoping for 3250 ~ 3300 out the 210. I did chrono some Nosler 180s and was getting an honest 3600 with no pressure signs.

I am not really interested in velocity when a good scope with turrets is being used. I already have a very accurate load for this rifle with a 210 VLD @ 3050 MV. That is plenty fast enough when you are dialing in every shot. Many 300 Wins are very accurate out to a mile with 2900 to 3000 FPS. So I think we are good with 3050 and the brass should last for several loadings.

Jeff

[bigpk]

I am not really interested in velocity when a good scope with turrets is being used. I already have a very accurate load for this rifle with a 210 VLD @ 3050 MV. That is plenty fast enough when you are dialing in every shot. Many 300 Wins are very accurate out to a mile with 2900 to 3000 FPS. So I think we are good with 3050 and the brass should last for several loadings.

Jeff

I mean this with all respect to the 30-378, but if you can get the same velocity out of a 300 wby or 300 win, why use the 30-378? I have never shot the 30-378 so I am not sure if it is a more accurate round? I am guessing that load for the 30-378 would be a lot easier on brass than getting those velocities from a 300, but is there more to this?

[Broz]

No that is a very good point bigpk. This is a whimpy load for a 30-378 but it is accurate, easy on brass and has a low ES in this rifle. The room to push it it is there if so desired. You are certainly right that some 300's may also get to that velocity, but like you mentiond would be close to or over max with a 210 gr bullet. So why did we pick the 30-378, well mainly because I had it and when it is time for a rebarrel all the larger components will be there, like, mag box, ejector, long bolt relief, so it would be an easy barrel swap to a .338 Lapua.

Jeff

[bigpk]

No that is a very good point bigpk. This is a whimpy load for a 30-378 but it is accurate, easy on brass and has a low ES in this rifle. The room to push it it is there if so desired. You are certainly right that some 300's may also get to that velocity, but like you mentiond would be close to or over max with a 210 gr bullet. So why did we pick the 30-378, well mainly because I had it and when it is time for a rebarrel all the larger components will be there, like, mag box, ejector, long bolt relief, so it would be an easy barrel swap to a .338 Lapua.

Jeff

That makes total sense! I like that! It would be tough to go wrong with a 210 berger at that velocity!

[Broz]

That makes total sense! I like that! It would be tough to go wrong with a 210 berger at that velocity!

You are right, It's really pretty good considering my Lapua has shot to 2100 yards with good results at 2750 fps. My sons 300 WIN shoots 210 bergers at 2900. Smokin "Pole Axed" his huge Muley at 974 yards with a 210 Berger at 2850 I believe. I guess the nice thing about the big case is, 3050 is a pretty good MV for a 30 cal 210 VLD and the load is plenty soft and easy on brass.

Jeff

[wbyfireman]

Looks alone on that cannon will kill..... That is awsome!!