220 Swift Data

RAD57

RAD57

Beginner
Mar 7, 2019
34
30
Need some new powder updates/additions with the 220 Swift. H4350, RL16, & N540 are doing an awesome job with the 50 & 55 grain bullets.
 
About 39 years ago I had a Ruger 77 varmint rifle in 220 Swift and used IMR 4064 with 52 gr Speer HPs. Shot a lot of crows out in the peanut fields in east NC and as long as the wind was not blowing too much they did not get too far away. They looked like they swallowed a cherry bomb when hit.
 
remingtonman_25_06":2mq1el1g said:
Only 1 powder for the swift and that's IMR4064...
Click to expand...

It's supposed to be a good one for the 220, but oddly enough I loaded for an older Ruger tang safety 220 swift with 55 v-max's and 4064 was the first powder I went for and could not get it to shoot satisfactorily with that powder.

The guy was in a hurry to shoot groundhogs so I tried IMR4831 and immediately found a load that was consistently 1/2" and under. Speeds were down significantly but it allowed him to go have fun. I'd like to revisit that rifle with 4064 or another powder to try and get both accuracy and speed.
 
Hodgdon lists 42.0 grains H4350 and 55 grain bullets at a paltry 50,000 CUP. I worked up a load in my rifle of 43.4 H4350 with 55 grain Varmageddon Tipped that delivers 3839 fps, 13 ES, 6 SD and shows zero signs of high pressure, easy bolt lift, no flattened primers, etc.
Once again I worked up this load in my rifle, your results will/may be different ... SAFETY FIRST!
 
I had a ruger MKII TARGET laminated/stainless and it loved 4064...1/2 MOA or better at 3900fps with 55g NBTs...Was hell on coyotes out to 500 yards...I shot that barrel out in 2 years and sold the rifle. Only swift I've ever owned and that was 15 years ago.
 
RAD57":1rvj83cn said:
Need some new powder updates/additions with the 220 Swift. H4350, RL16, & N540 are doing an awesome job with the 50 & 55 grain bullets.
Click to expand...

Why mess with success, unless you're just experimentally inclined?

I had a Ruger 77V about 30 years ago. H4895 & the thin-jacketed Hornady 50gr SX seated long was the best I came up with. Velocity was around 3850fps, groups flirted with 1/2". IMR 4064 shot well with flyers, & the speed wasn't as good as 4895. I was starting to work with RL15 with best accuracy, again, at around 3800fps with the 50gr Sierra MV Blitz, but sold the rifle after I got a 22-250 Ackley bastardization that could shoot 1/4" right around 3975fps with the 53gr Hornady match.

WLR primers were used for everything.

Other things tried in the Swift... IMR3031 kept up with H4895 velocity-wise with deteriorating accuracy over 3700fps. AA2700 showed abysmal accuracy but made it to right around 4020fps with a warm load. W-W 760 was promising with Hornady 53 Match. My gun didn't like any of the 55s too much except for RL15 & Nosler 55gr Solid Base which was showing promise but not chronographed.

More useless Swift trivia... At the time Hornady was just starting to make brass. It was unremarkable & hard to find. My lot of W-W bulk brass necks were too thick for my chamber. I hate turning necks. Norma brass worked real well. My buddy got an identical Ruger & it also liked the exact same load of H4895 & 50SXs best. The only thing that ever shot an honest-to-god over 4000fps with any accuracy out of the 24" Ruger was a batch of Norma 50s that shot around an inch at 4008fps. Even the old W-W 48 gr load was only 3959fps with maybe minute of pie plate accuracy.

A Model 54 Winchester (yes, a few of these snuck out of the factory pre-war) with 26" sporter weight barrel & a bright, shiny, crisply rifled bore stayed really close to the above results with a tad less accuracy & not much difference in velocity.
 
Not to mess with success, looking for new ways to meet that success. Checking out some loads with Alliant Reloader TS15.5 in my 220 Swift M70 Varmint 26" barrel. The powder exceeded my expectations. I wasn't shooting for groups just checking velocities, extreme spread and standard deviation data while shooting at a 100 yard target. Components are: 50 Varmageddon Tipped, RL15.5, Fed GM210M primers, Win brass 165.5 grain +/- 0.3 grains. 39.2 gr = 3927 fps, 14 ES, 7 SD; 39.6 gr = 3934 fps, 10 ES, 5 SD; 40 gr = 3997 fps, 23 ES, 11 SD; 40.4 gr = 4044 fps, 31 ES, 14 SD. None of the loads exhibited over pressure signs in my rifle or brass, no cratered primers, no stiff or stuck bolt and no loose primer pockets. Thanks to a recent cold front blowing through the temps were down in the upper 60s, so I'm imposing a 40 grain max charge on myself for this load and rifle. Not shooting for groups but the 39.2 gr was .734", 39.6 = .488", 40 gr = .492" and 40.4 = .452".
 
Looking for more success. Some data from my 220 Swift with 55 gr Varmageddon Tipped bullets and RL16.
41.7 gr = 3852 fps, 30 ES, 12.3 SD
41.9 gr = 3878 fps, 9 ES, 6.3 SD
42.1 gr = 3899 fps, 25 ES, 17.5 SD
42.3 gr = 3891 fps, 33 ES, 16.5 SD
It appears the sweet spot is somewhere between 41.7 - 42.1 grains due to decreasing velocity gains and increasing ES/SD after 42.1 grain. The groups remained at about 0.5" until the 42.3 grain load where it tightened up to .330". All the groups were centered on the same impact point in relation to aim point.
 
Have you tried the Alliant Power Pro 2000-MR powder?
I use Nosler 55gn Ballistic tip projectiles with 41gns of Alliant 2000-MR powder and Remington 91/2 primers . This resulted in a 5 shot group of 10mm @ 100m.
My rifle is a Ruger M77V with a SS 28" barrel with a 1:12 twist. There are no signs of stress from the fired cases.
With the factory M77V, my standard load was 42gns of W760 with Sierra BPBT projectiles which resulted in an average 5 shot velocity of 4029fps and produced a very tight group. I haven't as yet chronographed the Alliant powder.
The best powder for a particular rifle can only be determined by loading and test firing a different powder combinations with a particular projectile.
Alliant 2000-MR used with the Nosler 55gn SPBT produced a 5 shot group of 38mm @ 100m
I use a custom built shooting table and a Calder Fire Control Full-Length rest. I have owned this rifle for over 40years.
 
Welcome aboard, AussieSwift. That is some fine riflery you report with your swift. To be sure, the Swift is a sweet cartridge that needs to be seen more often. Look forward to your contributions to the discussions.
 
AussieSwift said:
Have you tried the Alliant Power Pro 2000-MR powder?
I use Nosler 55gn Ballistic tip projectiles with 41gns of Alliant 2000-MR powder and Remington 91/2 primers . This resulted in a 5 shot group of 10mm @ 100m.
My rifle is a Ruger M77V with a SS 28" barrel with a 1:12 twist. There are no signs of stress from the fired cases.
With the factory M77V, my standard load was 42gns of W760 with Sierra BPBT projectiles which resulted in an average 5 shot velocity of 4029fps and produced a very tight group. I haven't as yet chronographed the Alliant powder.
The best powder for a particular rifle can only be determined by loading and test firing a different powder combinations with a particular projectile.
Alliant 2000-MR used with the Nosler 55gn SPBT produced a 5 shot group of 38mm @ 100m
I use a custom built shooting table and a Calder Fire Control Full-Length rest. I have owned this rifle for over 40years.
Click to expand...
Welcome to the forum, 4000 + fps is smoking fast and a 10mm 5 shot group is amazing. You could reach out and touch those yotes easily with this flat shooting cartridge.
 
Cartridge : .220 Swift
Bullet : .224, 50, Nosler BalTip 39522
Useable Case Capaci: 43.818 grain H2O = 2.845 cm³
Cartridge O.A.L. L6: 2.680 inch = 68.07 mm
Barrel Length : 26.0 inch = 660.4 mm



Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-17 *T 105.0 44.5 2.88 4215 99.3 61444 11661 0.909 ! Near Maximum !
Elcho 17 105.0 44.5 2.88 4215 99.3 61444 11661 0.909 ! Near Maximum !
ReloadSwiss RS 60 *T 105.0 44.5 2.88 4202 99.7 59675 11759 0.918 ! Near Maximum !
Winchester 760 104.9 44.8 2.90 4172 95.4 63570 11472 0.906 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 104.9 44.8 2.90 4172 95.4 63570 11472 0.906 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 102.8 42.0 2.72 4135 99.6 63570 10775 0.925 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 102.8 42.0 2.72 4135 99.6 63570 10775 0.925 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 105.0 42.0 2.72 4122 99.4 63410 10678 0.926 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 105.0 41.5 2.69 4115 99.3 63555 10654 0.921 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380 101.9 42.0 2.72 4114 97.6 63570 10877 0.919 !DANGEROUS LOAD-DO NOT USE!
Accurate 4064 102.9 40.7 2.64 4113 100.0 63570 10229 0.942 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.6 97.7 40.7 2.63 4112 100.0 63570 10225 0.926 !DANGEROUS LOAD-DO NOT USE!
Accurate 2520 95.5 40.7 2.63 4112 100.0 63570 10225 0.926 !DANGEROUS LOAD-DO NOT USE!
Shooters World Match Rifle 97.7 40.7 2.63 4112 100.0 63570 10225 0.926 !DANGEROUS LOAD-DO NOT USE!
Accurate 2495 97.1 38.4 2.49 4101 100.0 63570 9899 0.944 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511 105.0 45.2 2.93 4077 95.3 58643 11285 0.937 ! Near Maximum !
SNPE Vectan SP 7 96.1 41.6 2.70 4076 97.5 63570 10507 0.921 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 *C*T 105.0 43.3 2.81 4071 97.0 58506 11202 0.948 ! Near Maximum !
Rottweil R901 96.9 37.2 2.41 4067 100.0 63570 9885 0.930 !DANGEROUS LOAD-DO NOT USE!
Accurate 2460 91.3 39.7 2.57 4066 99.9 63570 9988 0.929 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.5 91.6 39.7 2.57 4066 99.9 63570 9988 0.929 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 103.2 42.3 2.74 4053 94.5 63570 10577 0.918 !DANGEROUS LOAD-DO NOT USE!
Hodgdon LVR 105.0 42.4 2.75 4052 96.3 57833 10986 0.943 ! Near Maximum !
ReloadSwiss RS 70 *C 105.0 45.2 2.93 4027 95.3 54715 11500 0.959 ! Near Maximum !
Vihtavuori N160 *C 105.0 43.3 2.81 4026 97.2 58909 10537 0.940 ! Near Maximum !
Bofors RP7 105.0 41.6 2.70 3991 93.8 60421 10437 0.939 ! Near Maximum !
Rottweil R907 105.0 41.6 2.70 3991 93.8 60421 10437 0.939 ! Near Maximum !
ReloadSwiss RS 62 105.0 44.4 2.88 3986 95.8 53073 11155 0.985 ! Near Maximum !
Bofors RL16 TZ *C *T 105.0 41.3 2.68 3975 96.1 52047 11078 0.978
Alliant Reloder-16 *C *T 105.0 41.3 2.68 3975 96.1 52047 11078 0.978
Accurate 4350 105.0 42.4 2.75 3952 96.0 52767 10924 1.000
Shooters World Long Rifle 105.0 41.5 2.69 3947 95.5 57395 10347 0.965 ! Near Maximum !
Lovex S065 105.0 41.5 2.69 3947 95.5 57395 10347 0.965 ! Near Maximum !
Norma URP *C 105.0 42.0 2.72 3945 95.9 52431 10831 0.988
Bofors RP19 ~approximation 105.0 42.0 2.72 3944 95.8 52378 10825 0.988
Norma 204 *C 105.0 43.8 2.84 3930 90.3 55037 10627 0.963 ! Near Maximum !
Ramshot Hunter 105.0 43.8 2.84 3928 93.5 52172 10903 0.988
Lovex S070 105.0 42.0 2.72 3906 93.5 54756 10447 0.986 ! Near Maximum !
Shooters World SW4350 105.0 42.0 2.72 3906 93.5 54756 10447 0.986 ! Near Maximum !
PB Clermont PCL 518 105.0 43.8 2.84 3892 92.6 50819 10827 1.000
Bofors RP4 NT *C ~approximation 105.0 43.1 2.79 3877 92.2 52862 10410 0.990
Somchem S365 105.0 42.2 2.73 3869 98.0 46748 10793 1.035
Hodgdon Hybrid 100V 105.0 41.0 2.66 3806 96.7 47734 10055 1.027
Bofors RP4 ~approximation 105.0 42.4 2.75 3786 88.1 49071 10214 1.015
Raufoss RA4 105.0 42.4 2.75 3786 88.1 49071 10214 1.015
ADI AR 2209 105.0 42.2 2.73 3741 86.9 46988 10188 1.031
Rottweil R904 105.0 41.8 2.71 3722 86.4 48327 9764 1.026
Alliant Reloder-19 *C 105.0 42.4 2.75 3717 86.9 45530 10206 1.051
Alliant Reloder-26 *C 105.0 45.6 2.95 3717 90.2 41349 11338 1.099
IMR 4831 105.0 40.6 2.63 3715 93.6 44120 10142 1.077
Somchem S361 105.0 45.2 2.93 3713 86.0 50434 9566 1.020
Winchester Supreme 780 105.0 44.7 2.90 3703 87.4 47631 9796 1.033
Bofors RP14 ~approximation 105.0 42.4 2.75 3677 86.4 44497 10025 1.063
Norma MRP *C 105.0 44.3 2.87 3674 86.5 41475 10775 1.097
Somchem S385 105.0 42.9 2.78 3655 88.2 43749 9922 1.085
Vihtavuori N555 *C*T 105.0 41.6 2.69 3629 92.0 38685 10468 1.144
IMR 7828 SSC 105.0 43.6 2.82 3626 81.6 42931 10096 1.078
Hodgdon H4831 SC *T 105.0 42.9 2.78 3609 82.5 44188 9552 1.067
ADI AR 2213 105.0 42.9 2.78 3588 81.1 42197 9851 1.086
Vihtavuori N560 *C 105.0 43.3 2.81 3581 80.2 40102 10178 1.116
IMR 4955 Enduron *C*T 105.0 41.3 2.67 3573 83.4 43680 9255 1.076
Raufoss RA15 *C 105.0 42.9 2.78 3569 83.4 39357 10106 1.126
Alliant Reloder-22 *C 105.0 42.9 2.78 3569 83.4 39357 10106 1.126
Bofors RP5/NP ~approximation 105.0 42.9 2.78 3569 83.4 39357 10106 1.126
Alliant Reloder-23 *C *T 105.0 41.5 2.69 3528 91.7 36579 10065 1.162
Bofors RP36 ZT *C *T 105.0 41.5 2.69 3528 91.7 36579 10065 1.162
Accurate MAGPRO 105.0 45.1 2.92 3514 77.1 38821 9900 1.139
Ramshot Magnum 105.0 46.2 2.99 3480 82.4 39401 9589 1.129
Rottweil R905 105.0 42.1 2.73 3476 79.6 38121 9428 1.145
Accurate 3100 105.0 42.4 2.75 3471 87.4 36974 9480 1.180
Winchester WXR 105.0 42.0 2.72 3453 81.0 36070 9675 1.173
Bofors RP15 105.0 42.0 2.72 3453 81.0 36070 9675 1.173
Hodgdon H4831 *T 105.0 41.2 2.67 3441 79.4 38591 8992 1.136
Vihtavuori N165 *C 105.0 42.0 2.72 3412 83.5 37147 8909 1.162
Bofors RP5 NT *C ~approximation 105.0 43.2 2.80 3405 75.7 38289 8919 1.145
IMR 7828 105.0 41.2 2.67 3379 76.6 35479 9181 1.175
SNPE Vectan SP 12 105.0 45.3 2.93 3361 76.2 35933 9327 1.179
PB Clermont PCL 517 105.0 45.3 2.93 3352 75.9 35748 9288 1.181
ADI AP 2214 105.0 44.0 2.85 3335 75.5 36547 8845 1.168
Alliant Reloder-25 *C 105.0 42.2 2.73 3332 82.0 32806 9485 1.217
Vihtavuori N565 *C*T 105.0 43.6 2.82 3300 75.6 32041 9256 1.243
IMR 7977 Enduron *C*T 105.0 42.0 2.72 3267 70.1 38117 7705 1.158
ReloadSwiss RS 76 *C 105.0 45.6 2.96 3239 73.3 32167 9299 1.241
Lovex S071 105.0 40.1 2.60 3233 82.9 30273 8728 1.272
Norma MRP 2 *C 105.0 42.4 2.75 3163 72.4 29022 8761 1.292
 
Cartridge : .220 Swift
Bullet : .224, 55, Nosler BalTip 39526
Useable Case Capaci: 43.718 grain H2O = 2.839 cm³
Cartridge O.A.L. L6: 2.680 inch = 68.07 mm
Barrel Length : 26.0 inch = 660.4 mm



2 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
ReloadSwiss RS 60 *T 104.8 44.3 2.87 4130 100.0 63570 11838 0.925 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 *T 104.0 44.0 2.85 4105 99.9 63570 11765 0.929 !DANGEROUS LOAD-DO NOT USE!
Elcho 17 104.0 44.0 2.85 4105 99.9 63570 11765 0.929 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 102.9 43.8 2.84 4025 96.5 63570 11639 0.940 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 102.9 43.8 2.84 4025 96.5 63570 11639 0.940 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511 105.0 45.1 2.92 4020 97.3 62865 11644 0.942 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 *C*T 105.0 43.2 2.80 4007 98.5 62781 11490 0.953 !DANGEROUS LOAD-DO NOT USE!
Hodgdon LVR 105.0 42.3 2.74 3989 98.0 62086 11284 0.949 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 *C 105.0 45.1 2.92 3982 97.4 58521 11884 0.963 ! Near Maximum !
Bofors RP3 100.7 41.0 2.66 3979 99.9 63570 10797 0.960 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 100.7 41.0 2.66 3979 99.9 63570 10797 0.960 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 103.0 41.1 2.66 3970 99.8 63570 10711 0.959 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380 99.9 41.1 2.67 3965 98.4 63570 10980 0.953 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 103.0 40.6 2.63 3961 99.7 63570 10692 0.955 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 *C 105.0 43.2 2.80 3961 98.6 63275 10789 0.946 !DANGEROUS LOAD-DO NOT USE!
Shooters World Match Rifle 95.7 39.7 2.57 3950 100.0 63570 10193 0.961 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.6 95.7 39.7 2.57 3950 100.0 63570 10193 0.961 !DANGEROUS LOAD-DO NOT USE!
Accurate 2520 93.5 39.7 2.57 3950 100.0 63570 10193 0.961 !DANGEROUS LOAD-DO NOT USE!
Accurate 4064 100.7 39.7 2.57 3949 100.0 63570 10194 0.977 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 62 105.0 44.3 2.87 3937 97.8 57465 11482 0.987 ! Near Maximum !
Accurate 2495 95.0 37.4 2.43 3931 100.0 63570 9853 0.980 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 7 94.3 40.8 2.64 3928 98.3 63570 10607 0.955 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-16 *C *T 105.0 41.2 2.67 3919 98.0 55577 11392 0.984 ! Near Maximum !
Bofors RL16 TZ *C *T 105.0 41.2 2.67 3919 98.0 55577 11392 0.984 ! Near Maximum !
Bofors RP7 104.7 41.4 2.68 3913 95.7 63570 10753 0.951 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 104.7 41.4 2.68 3913 95.7 63570 10753 0.951 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 101.4 41.4 2.68 3912 95.7 63570 10744 0.951 !DANGEROUS LOAD-DO NOT USE!
Rottweil R901 94.9 36.3 2.35 3905 100.0 63570 9842 0.965 !DANGEROUS LOAD-DO NOT USE!
Accurate 4350 105.0 42.3 2.74 3903 97.9 57273 11223 1.001 ! Near Maximum !
Norma URP *C 105.0 41.9 2.71 3889 97.7 56476 11146 0.993 ! Near Maximum !
Bofors RP19 ~approximation 105.0 41.9 2.71 3887 97.7 56420 11140 0.993 ! Near Maximum !
Lovex S065 105.0 41.4 2.68 3881 97.3 61151 10649 0.972 ! Near Maximum !
Shooters World Long Rifle 105.0 41.4 2.68 3881 97.3 61151 10649 0.972 ! Near Maximum !
Norma 204 *C 105.0 43.7 2.83 3880 92.9 58796 11078 0.969 ! Near Maximum !
Ramshot Hunter 105.0 43.7 2.83 3877 95.8 55901 11301 0.993 ! Near Maximum !
Lovex S070 105.0 41.9 2.71 3848 95.6 58517 10806 0.992 ! Near Maximum !
Shooters World SW4350 105.0 41.9 2.71 3848 95.6 58517 10806 0.992 ! Near Maximum !
PB Clermont PCL 518 105.0 43.7 2.83 3844 95.0 54432 11248 1.005 ! Near Maximum !
Bofors RP4 NT *C ~approximation 105.0 43.0 2.78 3826 94.6 56752 10808 0.995 ! Near Maximum !
Somchem S365 105.0 42.1 2.73 3820 99.4 50456 11007 1.038
Hodgdon Hybrid 100V 105.0 40.9 2.65 3751 98.4 51288 10309 1.032
Raufoss RA4 105.0 42.3 2.74 3741 91.0 52405 10685 1.021
Bofors RP4 ~approximation 105.0 42.3 2.74 3741 91.0 52405 10685 1.021
Alliant Reloder-26 *C 105.0 45.5 2.95 3706 93.7 44582 11923 1.097
ADI AR 2209 105.0 42.1 2.73 3700 90.0 50077 10691 1.037
Alliant Reloder-19 *C 105.0 42.3 2.74 3676 89.9 48603 10706 1.056
Rottweil R904 105.0 41.7 2.70 3675 89.3 51557 10226 1.032
IMR 4831 105.0 40.5 2.63 3669 95.9 47685 10497 1.081
Somchem S361 105.0 45.1 2.92 3669 88.9 53925 10029 1.025 ! Near Maximum !
Winchester Supreme 780 105.0 44.6 2.89 3667 90.4 51001 10278 1.037
Norma MRP *C 105.0 44.2 2.86 3653 90.0 44517 11373 1.098
Bofors RP14 ~approximation 105.0 42.3 2.74 3638 89.4 47490 10525 1.068
Somchem S385 105.0 42.8 2.77 3618 91.2 47262 10383 1.087
IMR 7828 SSC 105.0 43.5 2.82 3603 85.3 45846 10718 1.081
Vihtavuori N555 *C*T 105.0 41.5 2.69 3601 94.9 42049 10898 1.143
Hodgdon H4831 SC *T 105.0 42.8 2.77 3574 85.8 47122 10081 1.072
ADI AR 2213 105.0 42.8 2.77 3561 84.8 44978 10458 1.091
Vihtavuori N560 *C 105.0 43.2 2.80 3559 83.9 42911 10812 1.118
Bofors RP5/NP ~approximation 105.0 42.8 2.77 3545 86.9 42175 10692 1.129
Raufoss RA15 *C 105.0 42.8 2.77 3545 86.9 42175 10692 1.129
Alliant Reloder-22 *C 105.0 42.8 2.77 3545 86.9 42175 10692 1.129
IMR 4955 Enduron *C*T 105.0 41.2 2.67 3528 86.4 46459 9730 1.084
Bofors RP36 ZT *C *T 105.0 41.4 2.68 3502 94.8 39241 10521 1.165
Alliant Reloder-23 *C *T 105.0 41.4 2.68 3502 94.8 39241 10521 1.165
 
Fortis, thankyou for the data. Updates always come in handy. I just started working with Re-16 and 55gr bullets.
 
Someone recommended AA2700 to me a while back. I'd found a really good load using 4064, but I tried 2700 anyway. I found just about the same accuracy, but noted that the 2700 load did not heat the barrel nearly as fast as 4064 does. I'm seeing groups of about 1/2 inch, and velocities well over 3900. I'm a convert.
 
Correction to my insertion :
Alliant 2000-MR used with the Nosler 55gn SPBT produced a 5 shot group of 38mm @ 100m
I use a custom built shooting table and a Calder Fire Control Full-Length rest. I have owned this rifle for over 40years.

Should have stated :
Alliant 2000-MR used with the Sierra 55gn SPBT produced a 5 shot group of 38mm @ 100m
I use a custom built shooting table and a Caldwell Fire Control Full-Length rest. I have owned this rifle for over 40years.
 
This data may be of interest for 220Swift users.

I keep a record of case failures relating to Winchester and Norma brass which I load with the results as described below

Winchester Brass average shots/failure : 3.2
Norma brass average shots/failure : 12.5
In order to know the case firings, I use a jewellers triangular file to make a small notch on the base of every loaded case as per the photo below.

My rifle, being a Ruger M77V has an interesting characteristic which users of the original M77V will understand in that the barrel has considerable free bore to the extent that a 55gn projectile just seated, will not come in contact with the rifling lands. This I assume would result in (on detonation) an immediate lower chamber pressure compared to other makes where the projectile is seated almost in contact with the rifling lands. This is an obvious caution to other Swift users if they are attempting to replicate loads developed in an original M77V 26" barrel. My new SS 28" SS barrel is chambered to replicate the free bore of the original barrel.3.jpg
 
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