Originally Posted by uncleB
I agree with J E Custom on some of his posts, have respect for some of his posts that I dont agree with but a 30-378 is perhaps the worst factory chambering EVER !!!
A properly tuned 300RUM will out shoot a 30/378 every single time (that I have witnessed) and with significantly less powder. if you step up to the 338/378 it is a whole different story.
The 30/338Lapua AI is a much better choice because of better brass and design, but is way too over-bore for very much barrel life
I respect your opinion also and agree with the majority about the 300 RUM being the
best choice .
And I have both the RUM and the 30/378 and I have had just the opposite experience.
And my 30/378 will shoot 200ft/sec faster than my 300 RUM (But it does take a lot more
powder) and my best group with the 300RUM is .271 5 shot at 100yrds (Just over 1/4
MOA) . But the 30/378 has shot .092'' 1/10th of a MOA 5 shot group at 100 yrds.
The main advantage of the 30/378 is with 225 and 250gr bullets and a case capacity
of over 120grs and with 200 ft/sec more velocity than the RUM.
I believe that any calibre can be made to shoot well if the weapon is well made and
has very close tolerances.
The 300RUM seems to be easy to reload to get good accuracy , but so does the
30/378 to me .
If you want more than a 300 RUM can deliver why go to a wildcat when you can go to
a factory chamber and ammo that will match or beat most of the big wildcats.
At present I only have 3 rifles that shoot less than a 1/10th of an inch and one of them
is the 30/378.
Again ;This was not an attack on UncleB just a reason why I would recomend
the big Weatherby.
J E CUSTOM