testtest

10mm SP vs LP

A while back I bought some Blazer 10mm ammo and it had small primers. Finally got around to testing primer size versus velocity.
10 shot strings measured 15' from muzzle, all brass once fired, 155gr Gold Dot bullets seated to 1.25"
Data is formatted:
Powder, charge weight
CCI 500, CCI 550, CCI 350, Winchester WLP

CFE Pistol, 8.8grs
1319, 1336, 1370, 1359
CFE Pistol, 9.2grs
1383, 1379, 1409, 1403
Longshot, 9.1grs
1321, 1314, 1377, 1367
Longshot, 9.6grs
1370, 1372, 1416, 1395
AA #9, 15.4grs
1383, 1418, 1445, 1432
AA #9, 15.8grs
1424, 1450, 1483, 1474

As I expected, the CCI 350 loads produced highest velocities.
**Loading rounds now to run same test in 45 Auto using all CCI primers and only one powder charge weight**
 

TEXASforLIFE

Professional
A while back I bought some Blazer 10mm ammo and it had small primers. Finally got around to testing primer size versus velocity.
10 shot strings measured 15' from muzzle, all brass once fired, 155gr Gold Dot bullets seated to 1.25"
Data is formatted:
Powder, charge weight
CCI 500, CCI 550, CCI 350, Winchester WLP

CFE Pistol, 8.8grs
1319, 1336, 1370, 1359
CFE Pistol, 9.2grs
1383, 1379, 1409, 1403
Longshot, 9.1grs
1321, 1314, 1377, 1367
Longshot, 9.6grs
1370, 1372, 1416, 1395
AA #9, 15.4grs
1383, 1418, 1445, 1432
AA #9, 15.8grs
1424, 1450, 1483, 1474

As I expected, the CCI 350 loads produced highest velocities.
**Loading rounds now to run same test in 45 Auto using all CCI primers and only one powder charge weight**
Are the 4 listed in the same order as primer order list? I use and have only used CCI for 35 years. I use magnum primers only with magnum type powders, but that's just my preference. Whether it be 250, 350 or 550(300bo w/ 296, h110 or lil'gun) just have never let me down! Are those a typical load charge for you?
 
Are the 4 listed in the same order as primer order list? I use and have only used CCI for 35 years. I use magnum primers only with magnum type powders, but that's just my preference. Whether it be 250, 350 or 550(300bo w/ 296, h110 or lil'gun) just have never let me down! Are those a typical load charge for you?
Yes, same order.
 
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