The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Reloading WOOHOO! Found my best load!Go | New | Find | Notify | Tools | Reply | |
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Found my best load for my .300 mag M77 MKII today...63 grains of IMR 4350 behind a 220 gr. Sierra round nose. Pulled off about a half inch, 5-shot group @ 100 yds. Did have one flier (makes it 6 shots), but I called it as bad before I looked. Even with it, it's still about a 1" group. To hell with the 165's cos these 220's will do everything they'll do and more (albeit a bit more slowly). Now, if I can just get the trigger reworked so it ain't so damn heavy this load may be downright scary! | ||
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CH, you will find that the RN bullets shoot alot better than most people give them credit for and are great performers for hunting with their positive expanding performance. I and others in my party have rediscovered the advantages in the RN bullets and are sticking to them, for short to medium distances they don't give up much to spitzer bullets. bigbull | |||
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Define short to medium distance? I'd define that as out to 300 yds. or so (considering the popularity of the .300 as a 1000-yard target gun). I would try to develop some loads for some 180 grain spitzers, but what's the point? The only advantage for those would be a flatter trajectory. These 220's oughta drop anything I'll ever use this gun for, aren't too vicious on recoil for a bit of target shooting, and are affordable to load. Only things I might consider trying to develop are some super-lights (125 grain or so) and maybe some 240 grain match for long range target shooting. | |||
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As I recall, there is minimal difference in trajectory between RNs and Spitzers out to 200 yds and my advice if your taking a shot at 250 yds is...get closer! Mike  What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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Once I get the stuff, I'm gonna compare how neck-sized vs. FL sized shoots, along with crimp vs. no crimp, etc. Gotta have somethin' to play with on the reloading end of it  | |||
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Hey Catfish, I really enjoy RNs myself, but limited them to 400yds. Some RNs just fly better than others, but the only way to know is to shoot them. The reason I'm posting is there may be situations where the 220gr RN is "over-bulleted" for the Game. A Lung-to-Lung shot on some of the smaller Whitetails would make it a poor choice and result in an opportunity to hone your Tracking Skills. Some 180gr-ers seem to do OK with that shot and others just don't encounter enough resistance to expand properly. Stick a 180gr-er in a Shoulder though and all is well. And a 125gr in the Lungs, if the Deer happened to be up-close at 300WinMag velocities has the potential to result in another long Tracking situation, or drop them where they stand - have seen both. I want excellent Accuracy in my Hunting Rifles as well as anyone. At the same time, it is possible to use the "wrong Bullet" for the task at hand. Since I don't see what you are Hunting, what I posted might not apply at all. Good hunting and clean 1-shot kills. | |||
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What's the twist on your Barrel? | |||
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It's a 1x10" twist Collins. I'll be hunting primarily deer and hogs, and feel the opportunity for either could pop up while hunting the other as the area I rifle hunt is known to have some big hogs. | |||
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I was thinking that 220 must be a long bullet and would need a reasonbly tight twist. Thanks | |||
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The only thing I see in any of my load manuals (I'm still a newbie) about a higher twist rate is for the 240 gr. Match King...and that's only on the "match data"...they actually put separate data for standard rifles and one set for match rifles (seated longer, more powder, faster twist). | |||
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