The overwhelming consensus of opinion in the ‘Re-chambering a .30-30 Combination Gun’ thread I recently started (plus another forum thread about re-chambering a .30-30 to .30-40 Krag) was this: DON’T EVEN THINK ABOUT DOING IT! Okay; I do get it.
So, my options to improve the ‘punch’ of my Savage 24 .30-30 seems to be limited only to ammo up-grading via either handloading, or using Hornady’s LEVERevolution ammo.
Hornady’s 160 gr LEVERevolution .30-30 produces 2,266 fps / 1,824 ft-lbs at the muzzle and
2,022 fps / 1,452 ft-lbs at 100 yds.
Winchester’s 170 gr Power Point .30-30 produces 2,060 fps / 1,602 ft-lbs at the muzzle and
1,765 fps / 1,176 ft-lbs at 100 yds.
Lets not look at LEVERevolution's longer distance improvements: I can’t normally see 50 yards in my local woods (filled with gullies, old open pit mine excavations, etc.), and a 150 yard shot across a cornfield would be a really long shot around here.
So, by simply spending a bit more money per cartridge, I could gain at least 257 fps / 276 ft-lbs at 100 yds. Better; but how much?
In addition, on the
www.loaddata.com website I found a ‘bolt action’ 165 gr .30-30 load listed at 2,453 fps muzzle velocity. This is a 187 fps improvement over Hornady’s LEVERevolution .30-30 offering.
So, it would seem that while staying below the SAMMI .30-30 guideline (38,000 CUP?), I could gain almost 400 fps muzzle velocity.
And, since the Savage 24 has 24" barrels, the gains I could achieve would be even greater since .30-30 data is normally determined using 20" barrels. Looking at
http://www.chuckhawks.com/rifle_barrel.htm I conclude that by handloading I could have a .30-30 round that reaches over 2500 fps and should produce about 2100 ft-lbs at the muzzle in a 24" barrel. Now were talking a hot .30-30!
I’ve been researching .30-30 ‘power/suitability’ all over the web. And, with the proviso that the .30-30 really isn’t the ideal cartridge to go up against brown bears with, most seem to believe that (if the shooter plays their part well) the .30-30 is suitable for using on any game animal in North America. And all of the comments I’ve been reading refer (I assume) to using standard flat nosed .30-30 ammo in 20” barrels.
I assume that by using a modern bullet design, the .30-30 would become more capable. While a 450 fps velocity improvement would seem like a significant amount to me, I can't see that this faster velocity would be noticeably better in the field at ‘iron sight’ / low power ‘slug scope’ ranges. However, having the ability to hit something with an additional 450-500 ft-lbs of energy (at 100 yds) does seem to be a good idea (or perhaps even necessary) when using a .30-30. It's this extra energy 'punch' that really interests me.
No, game animals haven’t started wearing Kevlar yet, but if I can improve the performance of my Savage 24’s .30-30 (while staying below SAMMI guidelines) is there any reason I should quit using LEVERevolution ammo, or not handload for even more punch?
In the shotgun barrel I have a riffled choke tube, and I use Remington's Buckhammer Slugs (the full power versions) that produce over 3,000 ft-lbs muzzle energy. As I can’t find anything to indicate that the Buckhammers are even close to the SAMMI shotgun pressure limit (12,000 psi?), I assume that running half a dozen of these 1-3/8 oz high power slugs through my Savage 24 each year isn’t going to dramatically shorten it’s life. But their kick certainly isn't helping to lengthen my shoulders useful lifespan!
But I guess that I should still stay away from tangling with those pesky brown bears who do seem to be framed with titanium.
Many thanks for taking the time to offer advice and comments.
Best regards,
Steve